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Finding the Fourth Proportional to 487,283.61, 729,500.07 and 284,258.94

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Solution

The fourth proportional to 487,283.61, 729,500.07 and 284,258.94 is: 425,556.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,283.61 : 729,500.07 = 284,258.94 : x
  2. Step 2: Convert to fraction form
    487,283.61/729,500.07 = 284,258.94/x
  3. Step 3: Cross multiply
    487,283.61x = 729,500.07 × 284,258.94
  4. Step 4: Simplify right side
    487,283.61x = 207,366,914,958.47
  5. Step 5: Solve for x
    x = 207,366,914,958.47/487,283.61
  6. Step 6: Final answer
    x = 425,556.92

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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.