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Finding the Fourth Proportional to 495,588.68, 683,915.12 and 304,726.76

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Solution

The fourth proportional to 495,588.68, 683,915.12 and 304,726.76 is: 420,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,588.68 : 683,915.12 = 304,726.76 : x
  2. Step 2: Convert to fraction form
    495,588.68/683,915.12 = 304,726.76/x
  3. Step 3: Cross multiply
    495,588.68x = 683,915.12 × 304,726.76
  4. Step 4: Simplify right side
    495,588.68x = 208,407,238,632.61
  5. Step 5: Solve for x
    x = 208,407,238,632.61/495,588.68
  6. Step 6: Final answer
    x = 420,524.61

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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.