Home / 1,375,232.64-1,897,853.76-771,665.28

Finding the Fourth Proportional to 1,375,232.64, 1,897,853.76 and 771,665.28

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Solution

The fourth proportional to 1,375,232.64, 1,897,853.76 and 771,665.28 is: 1,064,916.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,232.64 : 1,897,853.76 = 771,665.28 : x
  2. Step 2: Convert to fraction form
    1,375,232.64/1,897,853.76 = 771,665.28/x
  3. Step 3: Cross multiply
    1,375,232.64x = 1,897,853.76 × 771,665.28
  4. Step 4: Simplify right side
    1,375,232.64x = 1,464,507,853,109.45
  5. Step 5: Solve for x
    x = 1,464,507,853,109.45/1,375,232.64
  6. Step 6: Final answer
    x = 1,064,916.44

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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.