Home / 761,235.76-1,050,456.08-417,071.21

Finding the Fourth Proportional to 761,235.76, 1,050,456.08 and 417,071.21

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Solution

The fourth proportional to 761,235.76, 1,050,456.08 and 417,071.21 is: 575,531.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,235.76 : 1,050,456.08 = 417,071.21 : x
  2. Step 2: Convert to fraction form
    761,235.76/1,050,456.08 = 417,071.21/x
  3. Step 3: Cross multiply
    761,235.76x = 1,050,456.08 × 417,071.21
  4. Step 4: Simplify right side
    761,235.76x = 438,114,986,252.10
  5. Step 5: Solve for x
    x = 438,114,986,252.10/761,235.76
  6. Step 6: Final answer
    x = 575,531.28

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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.