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Finding the Fourth Proportional to 747,363, 1,031,382.84 and 407,853.12

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Solution

The fourth proportional to 747,363, 1,031,382.84 and 407,853.12 is: 562,849.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,363 : 1,031,382.84 = 407,853.12 : x
  2. Step 2: Convert to fraction form
    747,363/1,031,382.84 = 407,853.12/x
  3. Step 3: Cross multiply
    747,363x = 1,031,382.84 × 407,853.12
  4. Step 4: Simplify right side
    747,363x = 420,652,709,208.46
  5. Step 5: Solve for x
    x = 420,652,709,208.46/747,363
  6. Step 6: Final answer
    x = 562,849.26

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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.