Home / 2,275,368.20-3,412,130.70-778,689.80

Finding the Fourth Proportional to 2,275,368.20, 3,412,130.70 and 778,689.80

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Solution

The fourth proportional to 2,275,368.20, 3,412,130.70 and 778,689.80 is: 1,167,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275,368.20 : 3,412,130.70 = 778,689.80 : x
  2. Step 2: Convert to fraction form
    2,275,368.20/3,412,130.70 = 778,689.80/x
  3. Step 3: Cross multiply
    2,275,368.20x = 3,412,130.70 × 778,689.80
  4. Step 4: Simplify right side
    2,275,368.20x = 2,656,991,372,356.86
  5. Step 5: Solve for x
    x = 2,656,991,372,356.86/2,275,368.20
  6. Step 6: Final answer
    x = 1,167,719.30

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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.