Home / 901,021.56-1,243,286.76-538,368.84

Finding the Fourth Proportional to 901,021.56, 1,243,286.76 and 538,368.84

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Solution

The fourth proportional to 901,021.56, 1,243,286.76 and 538,368.84 is: 742,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,021.56 : 1,243,286.76 = 538,368.84 : x
  2. Step 2: Convert to fraction form
    901,021.56/1,243,286.76 = 538,368.84/x
  3. Step 3: Cross multiply
    901,021.56x = 1,243,286.76 × 538,368.84
  4. Step 4: Simplify right side
    901,021.56x = 669,346,850,768.56
  5. Step 5: Solve for x
    x = 669,346,850,768.56/901,021.56
  6. Step 6: Final answer
    x = 742,875.51

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Half scale
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Double scale
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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.