Home / 1,455,142.32-2,007,374.22-972,354.96

Finding the Fourth Proportional to 1,455,142.32, 2,007,374.22 and 972,354.96

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Solution

The fourth proportional to 1,455,142.32, 2,007,374.22 and 972,354.96 is: 1,341,367.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,142.32 : 2,007,374.22 = 972,354.96 : x
  2. Step 2: Convert to fraction form
    1,455,142.32/2,007,374.22 = 972,354.96/x
  3. Step 3: Cross multiply
    1,455,142.32x = 2,007,374.22 × 972,354.96
  4. Step 4: Simplify right side
    1,455,142.32x = 1,951,880,279,393.13
  5. Step 5: Solve for x
    x = 1,951,880,279,393.13/1,455,142.32
  6. Step 6: Final answer
    x = 1,341,367.27

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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.