Home / 1,326,132.12-1,989,212.07-1,061,574.38

Finding the Fourth Proportional to 1,326,132.12, 1,989,212.07 and 1,061,574.38

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Solution

The fourth proportional to 1,326,132.12, 1,989,212.07 and 1,061,574.38 is: 1,592,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,132.12 : 1,989,212.07 = 1,061,574.38 : x
  2. Step 2: Convert to fraction form
    1,326,132.12/1,989,212.07 = 1,061,574.38/x
  3. Step 3: Cross multiply
    1,326,132.12x = 1,989,212.07 × 1,061,574.38
  4. Step 4: Simplify right side
    1,326,132.12x = 2,111,696,559,952.71
  5. Step 5: Solve for x
    x = 2,111,696,559,952.71/1,326,132.12
  6. Step 6: Final answer
    x = 1,592,372.68

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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.