Home / 1,377,019.20-2,065,528.80-479,474.40

Finding the Fourth Proportional to 1,377,019.20, 2,065,528.80 and 479,474.40

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Solution

The fourth proportional to 1,377,019.20, 2,065,528.80 and 479,474.40 is: 719,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,019.20 : 2,065,528.80 = 479,474.40 : x
  2. Step 2: Convert to fraction form
    1,377,019.20/2,065,528.80 = 479,474.40/x
  3. Step 3: Cross multiply
    1,377,019.20x = 2,065,528.80 × 479,474.40
  4. Step 4: Simplify right side
    1,377,019.20x = 990,368,182,062.72
  5. Step 5: Solve for x
    x = 990,368,182,062.72/1,377,019.20
  6. Step 6: Final answer
    x = 719,211.60

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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.