Home / 1,371,030.80-2,057,129.40-660,693.20

Finding the Fourth Proportional to 1,371,030.80, 2,057,129.40 and 660,693.20

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Solution

The fourth proportional to 1,371,030.80, 2,057,129.40 and 660,693.20 is: 991,320.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,030.80 : 2,057,129.40 = 660,693.20 : x
  2. Step 2: Convert to fraction form
    1,371,030.80/2,057,129.40 = 660,693.20/x
  3. Step 3: Cross multiply
    1,371,030.80x = 2,057,129.40 × 660,693.20
  4. Step 4: Simplify right side
    1,371,030.80x = 1,359,131,406,100.08
  5. Step 5: Solve for x
    x = 1,359,131,406,100.08/1,371,030.80
  6. Step 6: Final answer
    x = 991,320.84

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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.