Home / 1,326,130.29-1,989,209.30-1,061,572.59

Finding the Fourth Proportional to 1,326,130.29, 1,989,209.30 and 1,061,572.59

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Solution

The fourth proportional to 1,326,130.29, 1,989,209.30 and 1,061,572.59 is: 1,592,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,130.29 : 1,989,209.30 = 1,061,572.59 : x
  2. Step 2: Convert to fraction form
    1,326,130.29/1,989,209.30 = 1,061,572.59/x
  3. Step 3: Cross multiply
    1,326,130.29x = 1,989,209.30 × 1,061,572.59
  4. Step 4: Simplify right side
    1,326,130.29x = 2,111,690,063,345.22
  5. Step 5: Solve for x
    x = 2,111,690,063,345.22/1,326,130.29
  6. Step 6: Final answer
    x = 1,592,369.98

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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.