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Finding the Fourth Proportional to 615,461.70, 922,674.15 and 319,973.70

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Solution

The fourth proportional to 615,461.70, 922,674.15 and 319,973.70 is: 479,691.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,461.70 : 922,674.15 = 319,973.70 : x
  2. Step 2: Convert to fraction form
    615,461.70/922,674.15 = 319,973.70/x
  3. Step 3: Cross multiply
    615,461.70x = 922,674.15 × 319,973.70
  4. Step 4: Simplify right side
    615,461.70x = 295,231,461,669.86
  5. Step 5: Solve for x
    x = 295,231,461,669.86/615,461.70
  6. Step 6: Final answer
    x = 479,691.04

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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.