Home / 840,452.22-1,159,878.87-477,909.81

Finding the Fourth Proportional to 840,452.22, 1,159,878.87 and 477,909.81

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Solution

The fourth proportional to 840,452.22, 1,159,878.87 and 477,909.81 is: 659,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,452.22 : 1,159,878.87 = 477,909.81 : x
  2. Step 2: Convert to fraction form
    840,452.22/1,159,878.87 = 477,909.81/x
  3. Step 3: Cross multiply
    840,452.22x = 1,159,878.87 × 477,909.81
  4. Step 4: Simplify right side
    840,452.22x = 554,317,490,384.72
  5. Step 5: Solve for x
    x = 554,317,490,384.72/840,452.22
  6. Step 6: Final answer
    x = 659,546.70

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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.