Home / 1,435,639.20-2,153,750.40-489,105.60

Finding the Fourth Proportional to 1,435,639.20, 2,153,750.40 and 489,105.60

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Solution

The fourth proportional to 1,435,639.20, 2,153,750.40 and 489,105.60 is: 733,757.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,639.20 : 2,153,750.40 = 489,105.60 : x
  2. Step 2: Convert to fraction form
    1,435,639.20/2,153,750.40 = 489,105.60/x
  3. Step 3: Cross multiply
    1,435,639.20x = 2,153,750.40 × 489,105.60
  4. Step 4: Simplify right side
    1,435,639.20x = 1,053,411,381,642.24
  5. Step 5: Solve for x
    x = 1,053,411,381,642.24/1,435,639.20
  6. Step 6: Final answer
    x = 733,757.74

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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.