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Finding the Fourth Proportional to 514,938.20, 772,407.30 and 304,813.40

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Solution

The fourth proportional to 514,938.20, 772,407.30 and 304,813.40 is: 457,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,938.20 : 772,407.30 = 304,813.40 : x
  2. Step 2: Convert to fraction form
    514,938.20/772,407.30 = 304,813.40/x
  3. Step 3: Cross multiply
    514,938.20x = 772,407.30 × 304,813.40
  4. Step 4: Simplify right side
    514,938.20x = 235,440,095,297.82
  5. Step 5: Solve for x
    x = 235,440,095,297.82/514,938.20
  6. Step 6: Final answer
    x = 457,220.10

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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.