Home / 1,291,340.60-1,937,010.90-818,559.80

Finding the Fourth Proportional to 1,291,340.60, 1,937,010.90 and 818,559.80

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Solution

The fourth proportional to 1,291,340.60, 1,937,010.90 and 818,559.80 is: 1,227,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,340.60 : 1,937,010.90 = 818,559.80 : x
  2. Step 2: Convert to fraction form
    1,291,340.60/1,937,010.90 = 818,559.80/x
  3. Step 3: Cross multiply
    1,291,340.60x = 1,937,010.90 × 818,559.80
  4. Step 4: Simplify right side
    1,291,340.60x = 1,585,559,254,901.82
  5. Step 5: Solve for x
    x = 1,585,559,254,901.82/1,291,340.60
  6. Step 6: Final answer
    x = 1,227,839.70

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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.