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Finding the Fourth Proportional to 495,065.52, 742,479.30 and 228,570

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Solution

The fourth proportional to 495,065.52, 742,479.30 and 228,570 is: 342,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,065.52 : 742,479.30 = 228,570 : x
  2. Step 2: Convert to fraction form
    495,065.52/742,479.30 = 228,570/x
  3. Step 3: Cross multiply
    495,065.52x = 742,479.30 × 228,570
  4. Step 4: Simplify right side
    495,065.52x = 169,708,493,601
  5. Step 5: Solve for x
    x = 169,708,493,601/495,065.52
  6. Step 6: Final answer
    x = 342,800.07

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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.