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Finding the Fourth Proportional to 486,925.79, 730,158.81 and 284,579.95

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Solution

The fourth proportional to 486,925.79, 730,158.81 and 284,579.95 is: 426,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,925.79 : 730,158.81 = 284,579.95 : x
  2. Step 2: Convert to fraction form
    486,925.79/730,158.81 = 284,579.95/x
  3. Step 3: Cross multiply
    486,925.79x = 730,158.81 × 284,579.95
  4. Step 4: Simplify right side
    486,925.79x = 207,788,554,838.84
  5. Step 5: Solve for x
    x = 207,788,554,838.84/486,925.79
  6. Step 6: Final answer
    x = 426,735.57

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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.