Home / 724,917.12-1,000,357.94-402,647.88

Finding the Fourth Proportional to 724,917.12, 1,000,357.94 and 402,647.88

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Solution

The fourth proportional to 724,917.12, 1,000,357.94 and 402,647.88 is: 555,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,917.12 : 1,000,357.94 = 402,647.88 : x
  2. Step 2: Convert to fraction form
    724,917.12/1,000,357.94 = 402,647.88/x
  3. Step 3: Cross multiply
    724,917.12x = 1,000,357.94 × 402,647.88
  4. Step 4: Simplify right side
    724,917.12x = 402,792,003,782.17
  5. Step 5: Solve for x
    x = 402,792,003,782.17/724,917.12
  6. Step 6: Final answer
    x = 555,638.70

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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.