Home / 840,023.80-1,159,132.62-477,316.60

Finding the Fourth Proportional to 840,023.80, 1,159,132.62 and 477,316.60

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Solution

The fourth proportional to 840,023.80, 1,159,132.62 and 477,316.60 is: 658,639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,023.80 : 1,159,132.62 = 477,316.60 : x
  2. Step 2: Convert to fraction form
    840,023.80/1,159,132.62 = 477,316.60/x
  3. Step 3: Cross multiply
    840,023.80x = 1,159,132.62 × 477,316.60
  4. Step 4: Simplify right side
    840,023.80x = 553,273,241,127.49
  5. Step 5: Solve for x
    x = 553,273,241,127.49/840,023.80
  6. Step 6: Final answer
    x = 658,639.96

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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.