Home / 724,917.08-1,000,357.90-402,647.85

Finding the Fourth Proportional to 724,917.08, 1,000,357.90 and 402,647.85

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Solution

The fourth proportional to 724,917.08, 1,000,357.90 and 402,647.85 is: 555,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,917.08 : 1,000,357.90 = 402,647.85 : x
  2. Step 2: Convert to fraction form
    724,917.08/1,000,357.90 = 402,647.85/x
  3. Step 3: Cross multiply
    724,917.08x = 1,000,357.90 × 402,647.85
  4. Step 4: Simplify right side
    724,917.08x = 402,791,956,658.90
  5. Step 5: Solve for x
    x = 402,791,956,658.90/724,917.08
  6. Step 6: Final answer
    x = 555,638.66

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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.