Home / 1,298,444.90-1,947,700.62-615,171.78

Finding the Fourth Proportional to 1,298,444.90, 1,947,700.62 and 615,171.78

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Solution

The fourth proportional to 1,298,444.90, 1,947,700.62 and 615,171.78 is: 922,773.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,444.90 : 1,947,700.62 = 615,171.78 : x
  2. Step 2: Convert to fraction form
    1,298,444.90/1,947,700.62 = 615,171.78/x
  3. Step 3: Cross multiply
    1,298,444.90x = 1,947,700.62 × 615,171.78
  4. Step 4: Simplify right side
    1,298,444.90x = 1,198,170,457,312.50
  5. Step 5: Solve for x
    x = 1,198,170,457,312.50/1,298,444.90
  6. Step 6: Final answer
    x = 922,773.44

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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.