Home / 778,860.90-1,168,291.35-731,621.70

Finding the Fourth Proportional to 778,860.90, 1,168,291.35 and 731,621.70

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Solution

The fourth proportional to 778,860.90, 1,168,291.35 and 731,621.70 is: 1,097,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,860.90 : 1,168,291.35 = 731,621.70 : x
  2. Step 2: Convert to fraction form
    778,860.90/1,168,291.35 = 731,621.70/x
  3. Step 3: Cross multiply
    778,860.90x = 1,168,291.35 × 731,621.70
  4. Step 4: Simplify right side
    778,860.90x = 854,747,303,582.30
  5. Step 5: Solve for x
    x = 854,747,303,582.30/778,860.90
  6. Step 6: Final answer
    x = 1,097,432.55

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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.