Home / 1,378,672.16-1,902,335.04-766,744.64

Finding the Fourth Proportional to 1,378,672.16, 1,902,335.04 and 766,744.64

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Solution

The fourth proportional to 1,378,672.16, 1,902,335.04 and 766,744.64 is: 1,057,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,672.16 : 1,902,335.04 = 766,744.64 : x
  2. Step 2: Convert to fraction form
    1,378,672.16/1,902,335.04 = 766,744.64/x
  3. Step 3: Cross multiply
    1,378,672.16x = 1,902,335.04 × 766,744.64
  4. Step 4: Simplify right side
    1,378,672.16x = 1,458,605,195,404.19
  5. Step 5: Solve for x
    x = 1,458,605,195,404.19/1,378,672.16
  6. Step 6: Final answer
    x = 1,057,978.28

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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.