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Finding the Fourth Proportional to 670,404.51, 924,252.71 and 455,170.95

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Solution

The fourth proportional to 670,404.51, 924,252.71 and 455,170.95 is: 627,521.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,404.51 : 924,252.71 = 455,170.95 : x
  2. Step 2: Convert to fraction form
    670,404.51/924,252.71 = 455,170.95/x
  3. Step 3: Cross multiply
    670,404.51x = 924,252.71 × 455,170.95
  4. Step 4: Simplify right side
    670,404.51x = 420,692,981,774.92
  5. Step 5: Solve for x
    x = 420,692,981,774.92/670,404.51
  6. Step 6: Final answer
    x = 627,521.11

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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.