Home / 1,559,138.40-2,339,582.40-660,427.20

Finding the Fourth Proportional to 1,559,138.40, 2,339,582.40 and 660,427.20

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Solution

The fourth proportional to 1,559,138.40, 2,339,582.40 and 660,427.20 is: 991,011.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559,138.40 : 2,339,582.40 = 660,427.20 : x
  2. Step 2: Convert to fraction form
    1,559,138.40/2,339,582.40 = 660,427.20/x
  3. Step 3: Cross multiply
    1,559,138.40x = 2,339,582.40 × 660,427.20
  4. Step 4: Simplify right side
    1,559,138.40x = 1,545,123,853,601.28
  5. Step 5: Solve for x
    x = 1,545,123,853,601.28/1,559,138.40
  6. Step 6: Final answer
    x = 991,011.35

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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.