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Finding the Fourth Proportional to 537,881.70, 806,822.55 and 479,820.90

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Solution

The fourth proportional to 537,881.70, 806,822.55 and 479,820.90 is: 719,731.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,881.70 : 806,822.55 = 479,820.90 : x
  2. Step 2: Convert to fraction form
    537,881.70/806,822.55 = 479,820.90/x
  3. Step 3: Cross multiply
    537,881.70x = 806,822.55 × 479,820.90
  4. Step 4: Simplify right side
    537,881.70x = 387,130,322,081.30
  5. Step 5: Solve for x
    x = 387,130,322,081.30/537,881.70
  6. Step 6: Final answer
    x = 719,731.35

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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.