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Finding the Fourth Proportional to 497,503.76, 686,573.54 and 282,680.21

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Solution

The fourth proportional to 497,503.76, 686,573.54 and 282,680.21 is: 390,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,503.76 : 686,573.54 = 282,680.21 : x
  2. Step 2: Convert to fraction form
    497,503.76/686,573.54 = 282,680.21/x
  3. Step 3: Cross multiply
    497,503.76x = 686,573.54 × 282,680.21
  4. Step 4: Simplify right side
    497,503.76x = 194,080,747,621.38
  5. Step 5: Solve for x
    x = 194,080,747,621.38/497,503.76
  6. Step 6: Final answer
    x = 390,109.11

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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.