Home / 1,314,265.80-1,969,065.90-815,046.60

Finding the Fourth Proportional to 1,314,265.80, 1,969,065.90 and 815,046.60

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Solution

The fourth proportional to 1,314,265.80, 1,969,065.90 and 815,046.60 is: 1,221,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,265.80 : 1,969,065.90 = 815,046.60 : x
  2. Step 2: Convert to fraction form
    1,314,265.80/1,969,065.90 = 815,046.60/x
  3. Step 3: Cross multiply
    1,314,265.80x = 1,969,065.90 × 815,046.60
  4. Step 4: Simplify right side
    1,314,265.80x = 1,604,880,466,970.94
  5. Step 5: Solve for x
    x = 1,604,880,466,970.94/1,314,265.80
  6. Step 6: Final answer
    x = 1,221,123.21

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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.