Home / 724,965.12-1,086,966.72-345,944.16

Finding the Fourth Proportional to 724,965.12, 1,086,966.72 and 345,944.16

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Solution

The fourth proportional to 724,965.12, 1,086,966.72 and 345,944.16 is: 518,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,965.12 : 1,086,966.72 = 345,944.16 : x
  2. Step 2: Convert to fraction form
    724,965.12/1,086,966.72 = 345,944.16/x
  3. Step 3: Cross multiply
    724,965.12x = 1,086,966.72 × 345,944.16
  4. Step 4: Simplify right side
    724,965.12x = 376,029,788,898.36
  5. Step 5: Solve for x
    x = 376,029,788,898.36/724,965.12
  6. Step 6: Final answer
    x = 518,686.73

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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.