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Finding the Fourth Proportional to 495,509.44, 683,426.28 and 342,801.76

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Solution

The fourth proportional to 495,509.44, 683,426.28 and 342,801.76 is: 472,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,509.44 : 683,426.28 = 342,801.76 : x
  2. Step 2: Convert to fraction form
    495,509.44/683,426.28 = 342,801.76/x
  3. Step 3: Cross multiply
    495,509.44x = 683,426.28 × 342,801.76
  4. Step 4: Simplify right side
    495,509.44x = 234,279,731,614.25
  5. Step 5: Solve for x
    x = 234,279,731,614.25/495,509.44
  6. Step 6: Final answer
    x = 472,805.79

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1.5x scale

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.