Home / 778,869.60-1,168,304.40-478,375.80

Finding the Fourth Proportional to 778,869.60, 1,168,304.40 and 478,375.80

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Solution

The fourth proportional to 778,869.60, 1,168,304.40 and 478,375.80 is: 717,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,869.60 : 1,168,304.40 = 478,375.80 : x
  2. Step 2: Convert to fraction form
    778,869.60/1,168,304.40 = 478,375.80/x
  3. Step 3: Cross multiply
    778,869.60x = 1,168,304.40 × 478,375.80
  4. Step 4: Simplify right side
    778,869.60x = 558,888,551,993.52
  5. Step 5: Solve for x
    x = 558,888,551,993.52/778,869.60
  6. Step 6: Final answer
    x = 717,563.70

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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.