Home / 697,354.12-1,046,031.18-487,402.12

Finding the Fourth Proportional to 697,354.12, 1,046,031.18 and 487,402.12

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Solution

The fourth proportional to 697,354.12, 1,046,031.18 and 487,402.12 is: 731,103.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,354.12 : 1,046,031.18 = 487,402.12 : x
  2. Step 2: Convert to fraction form
    697,354.12/1,046,031.18 = 487,402.12/x
  3. Step 3: Cross multiply
    697,354.12x = 1,046,031.18 × 487,402.12
  4. Step 4: Simplify right side
    697,354.12x = 509,837,814,718.10
  5. Step 5: Solve for x
    x = 509,837,814,718.10/697,354.12
  6. Step 6: Final answer
    x = 731,103.18

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.