Home / 687,622.40-1,031,433.60-500,998.40

Finding the Fourth Proportional to 687,622.40, 1,031,433.60 and 500,998.40

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Solution

The fourth proportional to 687,622.40, 1,031,433.60 and 500,998.40 is: 751,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,622.40 : 1,031,433.60 = 500,998.40 : x
  2. Step 2: Convert to fraction form
    687,622.40/1,031,433.60 = 500,998.40/x
  3. Step 3: Cross multiply
    687,622.40x = 1,031,433.60 × 500,998.40
  4. Step 4: Simplify right side
    687,622.40x = 516,746,583,306.24
  5. Step 5: Solve for x
    x = 516,746,583,306.24/687,622.40
  6. Step 6: Final answer
    x = 751,497.60

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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.