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Finding the Fourth Proportional to 537,981.60, 806,972.40 and 349,975.20

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Solution

The fourth proportional to 537,981.60, 806,972.40 and 349,975.20 is: 524,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,981.60 : 806,972.40 = 349,975.20 : x
  2. Step 2: Convert to fraction form
    537,981.60/806,972.40 = 349,975.20/x
  3. Step 3: Cross multiply
    537,981.60x = 806,972.40 × 349,975.20
  4. Step 4: Simplify right side
    537,981.60x = 282,420,327,084.48
  5. Step 5: Solve for x
    x = 282,420,327,084.48/537,981.60
  6. Step 6: Final answer
    x = 524,962.80

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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.