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Finding the Fourth Proportional to 585,430.60, 878,145.90 and 576,099.40

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Solution

The fourth proportional to 585,430.60, 878,145.90 and 576,099.40 is: 864,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,430.60 : 878,145.90 = 576,099.40 : x
  2. Step 2: Convert to fraction form
    585,430.60/878,145.90 = 576,099.40/x
  3. Step 3: Cross multiply
    585,430.60x = 878,145.90 × 576,099.40
  4. Step 4: Simplify right side
    585,430.60x = 505,899,326,102.46
  5. Step 5: Solve for x
    x = 505,899,326,102.46/585,430.60
  6. Step 6: Final answer
    x = 864,149.10

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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.