Home / 862,715.55-1,294,061.18-389,400.15

Finding the Fourth Proportional to 862,715.55, 1,294,061.18 and 389,400.15

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Solution

The fourth proportional to 862,715.55, 1,294,061.18 and 389,400.15 is: 584,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,715.55 : 1,294,061.18 = 389,400.15 : x
  2. Step 2: Convert to fraction form
    862,715.55/1,294,061.18 = 389,400.15/x
  3. Step 3: Cross multiply
    862,715.55x = 1,294,061.18 × 389,400.15
  4. Step 4: Simplify right side
    862,715.55x = 503,907,615,654.18
  5. Step 5: Solve for x
    x = 503,907,615,654.18/862,715.55
  6. Step 6: Final answer
    x = 584,094.74

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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.