Home / 1,478,437.60-2,217,656.40-1,329,138.40

Finding the Fourth Proportional to 1,478,437.60, 2,217,656.40 and 1,329,138.40

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Solution

The fourth proportional to 1,478,437.60, 2,217,656.40 and 1,329,138.40 is: 1,993,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,437.60 : 2,217,656.40 = 1,329,138.40 : x
  2. Step 2: Convert to fraction form
    1,478,437.60/2,217,656.40 = 1,329,138.40/x
  3. Step 3: Cross multiply
    1,478,437.60x = 2,217,656.40 × 1,329,138.40
  4. Step 4: Simplify right side
    1,478,437.60x = 2,947,572,279,245.76
  5. Step 5: Solve for x
    x = 2,947,572,279,245.76/1,478,437.60
  6. Step 6: Final answer
    x = 1,993,707.60

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Similar ratio
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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.