Home / 1,377,237.20-2,065,855.80-838,360.40

Finding the Fourth Proportional to 1,377,237.20, 2,065,855.80 and 838,360.40

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Solution

The fourth proportional to 1,377,237.20, 2,065,855.80 and 838,360.40 is: 1,257,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,237.20 : 2,065,855.80 = 838,360.40 : x
  2. Step 2: Convert to fraction form
    1,377,237.20/2,065,855.80 = 838,360.40/x
  3. Step 3: Cross multiply
    1,377,237.20x = 2,065,855.80 × 838,360.40
  4. Step 4: Simplify right side
    1,377,237.20x = 1,731,931,694,830.32
  5. Step 5: Solve for x
    x = 1,731,931,694,830.32/1,377,237.20
  6. Step 6: Final answer
    x = 1,257,540.60

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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.