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Finding the Fourth Proportional to 545,032.80, 817,549.20 and 521,996.40

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Solution

The fourth proportional to 545,032.80, 817,549.20 and 521,996.40 is: 782,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,032.80 : 817,549.20 = 521,996.40 : x
  2. Step 2: Convert to fraction form
    545,032.80/817,549.20 = 521,996.40/x
  3. Step 3: Cross multiply
    545,032.80x = 817,549.20 × 521,996.40
  4. Step 4: Simplify right side
    545,032.80x = 426,757,739,222.88
  5. Step 5: Solve for x
    x = 426,757,739,222.88/545,032.80
  6. Step 6: Final answer
    x = 782,994.60

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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.