Home / 1,291,551.64-1,782,340.75-710,774.78

Finding the Fourth Proportional to 1,291,551.64, 1,782,340.75 and 710,774.78

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Solution

The fourth proportional to 1,291,551.64, 1,782,340.75 and 710,774.78 is: 980,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,551.64 : 1,782,340.75 = 710,774.78 : x
  2. Step 2: Convert to fraction form
    1,291,551.64/1,782,340.75 = 710,774.78/x
  3. Step 3: Cross multiply
    1,291,551.64x = 1,782,340.75 × 710,774.78
  4. Step 4: Simplify right side
    1,291,551.64x = 1,266,842,847,442.61
  5. Step 5: Solve for x
    x = 1,266,842,847,442.61/1,291,551.64
  6. Step 6: Final answer
    x = 980,868.91

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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.