Home / 724,005.20-1,086,007.80-458,940.80

Finding the Fourth Proportional to 724,005.20, 1,086,007.80 and 458,940.80

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Solution

The fourth proportional to 724,005.20, 1,086,007.80 and 458,940.80 is: 688,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,005.20 : 1,086,007.80 = 458,940.80 : x
  2. Step 2: Convert to fraction form
    724,005.20/1,086,007.80 = 458,940.80/x
  3. Step 3: Cross multiply
    724,005.20x = 1,086,007.80 × 458,940.80
  4. Step 4: Simplify right side
    724,005.20x = 498,413,288,538.24
  5. Step 5: Solve for x
    x = 498,413,288,538.24/724,005.20
  6. Step 6: Final answer
    x = 688,411.20

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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.