Home / 1,117,728.32-1,542,502.29-627,784.04

Finding the Fourth Proportional to 1,117,728.32, 1,542,502.29 and 627,784.04

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Solution

The fourth proportional to 1,117,728.32, 1,542,502.29 and 627,784.04 is: 866,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,728.32 : 1,542,502.29 = 627,784.04 : x
  2. Step 2: Convert to fraction form
    1,117,728.32/1,542,502.29 = 627,784.04/x
  3. Step 3: Cross multiply
    1,117,728.32x = 1,542,502.29 × 627,784.04
  4. Step 4: Simplify right side
    1,117,728.32x = 968,358,319,325.45
  5. Step 5: Solve for x
    x = 968,358,319,325.45/1,117,728.32
  6. Step 6: Final answer
    x = 866,362.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.