Home / 1,314,948.80-1,972,423.20-1,285,424.30

Finding the Fourth Proportional to 1,314,948.80, 1,972,423.20 and 1,285,424.30

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Solution

The fourth proportional to 1,314,948.80, 1,972,423.20 and 1,285,424.30 is: 1,928,136.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,948.80 : 1,972,423.20 = 1,285,424.30 : x
  2. Step 2: Convert to fraction form
    1,314,948.80/1,972,423.20 = 1,285,424.30/x
  3. Step 3: Cross multiply
    1,314,948.80x = 1,972,423.20 × 1,285,424.30
  4. Step 4: Simplify right side
    1,314,948.80x = 2,535,400,711,163.76
  5. Step 5: Solve for x
    x = 2,535,400,711,163.76/1,314,948.80
  6. Step 6: Final answer
    x = 1,928,136.45

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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.