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Finding the Fourth Proportional to 618,076.80, 925,948.80 and 576,086.40

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Solution

The fourth proportional to 618,076.80, 925,948.80 and 576,086.40 is: 863,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,076.80 : 925,948.80 = 576,086.40 : x
  2. Step 2: Convert to fraction form
    618,076.80/925,948.80 = 576,086.40/x
  3. Step 3: Cross multiply
    618,076.80x = 925,948.80 × 576,086.40
  4. Step 4: Simplify right side
    618,076.80x = 533,426,510,776.32
  5. Step 5: Solve for x
    x = 533,426,510,776.32/618,076.80
  6. Step 6: Final answer
    x = 863,042.44

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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.