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Finding the Fourth Proportional to 508,937.40, 763,406.10 and 456,449.40

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Solution

The fourth proportional to 508,937.40, 763,406.10 and 456,449.40 is: 684,674.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,937.40 : 763,406.10 = 456,449.40 : x
  2. Step 2: Convert to fraction form
    508,937.40/763,406.10 = 456,449.40/x
  3. Step 3: Cross multiply
    508,937.40x = 763,406.10 × 456,449.40
  4. Step 4: Simplify right side
    508,937.40x = 348,456,256,301.34
  5. Step 5: Solve for x
    x = 348,456,256,301.34/508,937.40
  6. Step 6: Final answer
    x = 684,674.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.