Home / 1,559,139.40-2,339,583.90-660,428.20

Finding the Fourth Proportional to 1,559,139.40, 2,339,583.90 and 660,428.20

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Solution

The fourth proportional to 1,559,139.40, 2,339,583.90 and 660,428.20 is: 991,012.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559,139.40 : 2,339,583.90 = 660,428.20 : x
  2. Step 2: Convert to fraction form
    1,559,139.40/2,339,583.90 = 660,428.20/x
  3. Step 3: Cross multiply
    1,559,139.40x = 2,339,583.90 × 660,428.20
  4. Step 4: Simplify right side
    1,559,139.40x = 1,545,127,183,825.98
  5. Step 5: Solve for x
    x = 1,545,127,183,825.98/1,559,139.40
  6. Step 6: Final answer
    x = 991,012.85

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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.