Home / 724,003.70-1,086,005.55-456,898.10

Finding the Fourth Proportional to 724,003.70, 1,086,005.55 and 456,898.10

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Solution

The fourth proportional to 724,003.70, 1,086,005.55 and 456,898.10 is: 685,347.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,003.70 : 1,086,005.55 = 456,898.10 : x
  2. Step 2: Convert to fraction form
    724,003.70/1,086,005.55 = 456,898.10/x
  3. Step 3: Cross multiply
    724,003.70x = 1,086,005.55 × 456,898.10
  4. Step 4: Simplify right side
    724,003.70x = 496,193,872,384.46
  5. Step 5: Solve for x
    x = 496,193,872,384.46/724,003.70
  6. Step 6: Final answer
    x = 685,347.15

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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.