Home / 1,326,131.78-1,989,211.55-1,061,574.04

Finding the Fourth Proportional to 1,326,131.78, 1,989,211.55 and 1,061,574.04

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Solution

The fourth proportional to 1,326,131.78, 1,989,211.55 and 1,061,574.04 is: 1,592,372.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,131.78 : 1,989,211.55 = 1,061,574.04 : x
  2. Step 2: Convert to fraction form
    1,326,131.78/1,989,211.55 = 1,061,574.04/x
  3. Step 3: Cross multiply
    1,326,131.78x = 1,989,211.55 × 1,061,574.04
  4. Step 4: Simplify right side
    1,326,131.78x = 2,111,695,331,267.26
  5. Step 5: Solve for x
    x = 2,111,695,331,267.26/1,326,131.78
  6. Step 6: Final answer
    x = 1,592,372.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.