Home / 506,531.30-699,030.45-288,772.17

Finding the Fourth Proportional to 506,531.30, 699,030.45 and 288,772.17

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Solution

The fourth proportional to 506,531.30, 699,030.45 and 288,772.17 is: 398,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,531.30 : 699,030.45 = 288,772.17 : x
  2. Step 2: Convert to fraction form
    506,531.30/699,030.45 = 288,772.17/x
  3. Step 3: Cross multiply
    506,531.30x = 699,030.45 × 288,772.17
  4. Step 4: Simplify right side
    506,531.30x = 201,860,539,942.58
  5. Step 5: Solve for x
    x = 201,860,539,942.58/506,531.30
  6. Step 6: Final answer
    x = 398,515.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.