Home / 1,009,711.20-1,512,723.60-615,266.40

Finding the Fourth Proportional to 1,009,711.20, 1,512,723.60 and 615,266.40

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Solution

The fourth proportional to 1,009,711.20, 1,512,723.60 and 615,266.40 is: 921,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,711.20 : 1,512,723.60 = 615,266.40 : x
  2. Step 2: Convert to fraction form
    1,009,711.20/1,512,723.60 = 615,266.40/x
  3. Step 3: Cross multiply
    1,009,711.20x = 1,512,723.60 × 615,266.40
  4. Step 4: Simplify right side
    1,009,711.20x = 930,728,003,567.04
  5. Step 5: Solve for x
    x = 930,728,003,567.04/1,009,711.20
  6. Step 6: Final answer
    x = 921,776.45

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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.