Home / 816,129.05-1,224,400.93-479,454.35

Finding the Fourth Proportional to 816,129.05, 1,224,400.93 and 479,454.35

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Solution

The fourth proportional to 816,129.05, 1,224,400.93 and 479,454.35 is: 719,303.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,129.05 : 1,224,400.93 = 479,454.35 : x
  2. Step 2: Convert to fraction form
    816,129.05/1,224,400.93 = 479,454.35/x
  3. Step 3: Cross multiply
    816,129.05x = 1,224,400.93 × 479,454.35
  4. Step 4: Simplify right side
    816,129.05x = 587,044,344,711.91
  5. Step 5: Solve for x
    x = 587,044,344,711.91/816,129.05
  6. Step 6: Final answer
    x = 719,303.34

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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.