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Finding the Fourth Proportional to 546,630.80, 819,946.20 and 310,434.80

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Solution

The fourth proportional to 546,630.80, 819,946.20 and 310,434.80 is: 465,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,630.80 : 819,946.20 = 310,434.80 : x
  2. Step 2: Convert to fraction form
    546,630.80/819,946.20 = 310,434.80/x
  3. Step 3: Cross multiply
    546,630.80x = 819,946.20 × 310,434.80
  4. Step 4: Simplify right side
    546,630.80x = 254,539,834,607.76
  5. Step 5: Solve for x
    x = 254,539,834,607.76/546,630.80
  6. Step 6: Final answer
    x = 465,652.20

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Double scale
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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.