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Finding the Fourth Proportional to 514,930.80, 772,396.20 and 304,460.40

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Solution

The fourth proportional to 514,930.80, 772,396.20 and 304,460.40 is: 456,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,930.80 : 772,396.20 = 304,460.40 : x
  2. Step 2: Convert to fraction form
    514,930.80/772,396.20 = 304,460.40/x
  3. Step 3: Cross multiply
    514,930.80x = 772,396.20 × 304,460.40
  4. Step 4: Simplify right side
    514,930.80x = 235,164,056,010.48
  5. Step 5: Solve for x
    x = 235,164,056,010.48/514,930.80
  6. Step 6: Final answer
    x = 456,690.60

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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.