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Finding the Fourth Proportional to 546,547.80, 819,821.70 and 280,827.30

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Solution

The fourth proportional to 546,547.80, 819,821.70 and 280,827.30 is: 421,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,547.80 : 819,821.70 = 280,827.30 : x
  2. Step 2: Convert to fraction form
    546,547.80/819,821.70 = 280,827.30/x
  3. Step 3: Cross multiply
    546,547.80x = 819,821.70 × 280,827.30
  4. Step 4: Simplify right side
    546,547.80x = 230,228,314,492.41
  5. Step 5: Solve for x
    x = 230,228,314,492.41/546,547.80
  6. Step 6: Final answer
    x = 421,240.95

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Similar ratio
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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.