Home / 724,442.89-1,086,221.27-345,479.53

Finding the Fourth Proportional to 724,442.89, 1,086,221.27 and 345,479.53

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Solution

The fourth proportional to 724,442.89, 1,086,221.27 and 345,479.53 is: 518,008.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,442.89 : 1,086,221.27 = 345,479.53 : x
  2. Step 2: Convert to fraction form
    724,442.89/1,086,221.27 = 345,479.53/x
  3. Step 3: Cross multiply
    724,442.89x = 1,086,221.27 × 345,479.53
  4. Step 4: Simplify right side
    724,442.89x = 375,267,214,823.76
  5. Step 5: Solve for x
    x = 375,267,214,823.76/724,442.89
  6. Step 6: Final answer
    x = 518,008.00

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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.