Home / 1,572,132.40-2,167,345.92-1,329,441.28

Finding the Fourth Proportional to 1,572,132.40, 2,167,345.92 and 1,329,441.28

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Solution

The fourth proportional to 1,572,132.40, 2,167,345.92 and 1,329,441.28 is: 1,832,771.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,132.40 : 2,167,345.92 = 1,329,441.28 : x
  2. Step 2: Convert to fraction form
    1,572,132.40/2,167,345.92 = 1,329,441.28/x
  3. Step 3: Cross multiply
    1,572,132.40x = 2,167,345.92 × 1,329,441.28
  4. Step 4: Simplify right side
    1,572,132.40x = 2,881,359,134,087.58
  5. Step 5: Solve for x
    x = 2,881,359,134,087.58/1,572,132.40
  6. Step 6: Final answer
    x = 1,832,771.29

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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.