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Finding the Fourth Proportional to 546,834.70, 819,637.65 and 280,492.30

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Solution

The fourth proportional to 546,834.70, 819,637.65 and 280,492.30 is: 420,423.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,834.70 : 819,637.65 = 280,492.30 : x
  2. Step 2: Convert to fraction form
    546,834.70/819,637.65 = 280,492.30/x
  3. Step 3: Cross multiply
    546,834.70x = 819,637.65 × 280,492.30
  4. Step 4: Simplify right side
    546,834.70x = 229,902,049,615.10
  5. Step 5: Solve for x
    x = 229,902,049,615.10/546,834.70
  6. Step 6: Final answer
    x = 420,423.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.