Home / 687,417.59-1,030,793.05-403,200.98

Finding the Fourth Proportional to 687,417.59, 1,030,793.05 and 403,200.98

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Solution

The fourth proportional to 687,417.59, 1,030,793.05 and 403,200.98 is: 604,605.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,417.59 : 1,030,793.05 = 403,200.98 : x
  2. Step 2: Convert to fraction form
    687,417.59/1,030,793.05 = 403,200.98/x
  3. Step 3: Cross multiply
    687,417.59x = 1,030,793.05 × 403,200.98
  4. Step 4: Simplify right side
    687,417.59x = 415,616,761,775.22
  5. Step 5: Solve for x
    x = 415,616,761,775.22/687,417.59
  6. Step 6: Final answer
    x = 604,605.95

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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.