Home / 1,375,125.60-1,897,643.93-763,242.69

Finding the Fourth Proportional to 1,375,125.60, 1,897,643.93 and 763,242.69

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Solution

The fourth proportional to 1,375,125.60, 1,897,643.93 and 763,242.69 is: 1,053,258.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,125.60 : 1,897,643.93 = 763,242.69 : x
  2. Step 2: Convert to fraction form
    1,375,125.60/1,897,643.93 = 763,242.69/x
  3. Step 3: Cross multiply
    1,375,125.60x = 1,897,643.93 × 763,242.69
  4. Step 4: Simplify right side
    1,375,125.60x = 1,448,362,853,979.16
  5. Step 5: Solve for x
    x = 1,448,362,853,979.16/1,375,125.60
  6. Step 6: Final answer
    x = 1,053,258.59

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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.