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Finding the Fourth Proportional to 579,767.40, 868,959.90 and 242,807.40

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Solution

The fourth proportional to 579,767.40, 868,959.90 and 242,807.40 is: 363,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,767.40 : 868,959.90 = 242,807.40 : x
  2. Step 2: Convert to fraction form
    579,767.40/868,959.90 = 242,807.40/x
  3. Step 3: Cross multiply
    579,767.40x = 868,959.90 × 242,807.40
  4. Step 4: Simplify right side
    579,767.40x = 210,989,894,023.26
  5. Step 5: Solve for x
    x = 210,989,894,023.26/579,767.40
  6. Step 6: Final answer
    x = 363,921.62

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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.