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Finding the Fourth Proportional to 615,976.70, 922,676.17 and 495,381.77

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Solution

The fourth proportional to 615,976.70, 922,676.17 and 495,381.77 is: 742,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,976.70 : 922,676.17 = 495,381.77 : x
  2. Step 2: Convert to fraction form
    615,976.70/922,676.17 = 495,381.77/x
  3. Step 3: Cross multiply
    615,976.70x = 922,676.17 × 495,381.77
  4. Step 4: Simplify right side
    615,976.70x = 457,076,954,231.42
  5. Step 5: Solve for x
    x = 457,076,954,231.42/615,976.70
  6. Step 6: Final answer
    x = 742,036.12

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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.