Home / 901,503.69-1,243,710.48-538,720.49

Finding the Fourth Proportional to 901,503.69, 1,243,710.48 and 538,720.49

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Solution

The fourth proportional to 901,503.69, 1,243,710.48 and 538,720.49 is: 743,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,503.69 : 1,243,710.48 = 538,720.49 : x
  2. Step 2: Convert to fraction form
    901,503.69/1,243,710.48 = 538,720.49/x
  3. Step 3: Cross multiply
    901,503.69x = 1,243,710.48 × 538,720.49
  4. Step 4: Simplify right side
    901,503.69x = 670,012,319,203.74
  5. Step 5: Solve for x
    x = 670,012,319,203.74/901,503.69
  6. Step 6: Final answer
    x = 743,216.39

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.