Home / 687,701.10-1,031,551.65-475,124.70

Finding the Fourth Proportional to 687,701.10, 1,031,551.65 and 475,124.70

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Solution

The fourth proportional to 687,701.10, 1,031,551.65 and 475,124.70 is: 712,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,701.10 : 1,031,551.65 = 475,124.70 : x
  2. Step 2: Convert to fraction form
    687,701.10/1,031,551.65 = 475,124.70/x
  3. Step 3: Cross multiply
    687,701.10x = 1,031,551.65 × 475,124.70
  4. Step 4: Simplify right side
    687,701.10x = 490,115,668,240.76
  5. Step 5: Solve for x
    x = 490,115,668,240.76/687,701.10
  6. Step 6: Final answer
    x = 712,687.05

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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.