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Finding the Fourth Proportional to 497,492.25, 686,557.85 and 282,668.70

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Solution

The fourth proportional to 497,492.25, 686,557.85 and 282,668.70 is: 390,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,492.25 : 686,557.85 = 282,668.70 : x
  2. Step 2: Convert to fraction form
    497,492.25/686,557.85 = 282,668.70/x
  3. Step 3: Cross multiply
    497,492.25x = 686,557.85 × 282,668.70
  4. Step 4: Simplify right side
    497,492.25x = 194,068,413,520.95
  5. Step 5: Solve for x
    x = 194,068,413,520.95/497,492.25
  6. Step 6: Final answer
    x = 390,093.34

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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.