Home / 1,285,787.52-1,928,695.86-486,852.12

Finding the Fourth Proportional to 1,285,787.52, 1,928,695.86 and 486,852.12

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Solution

The fourth proportional to 1,285,787.52, 1,928,695.86 and 486,852.12 is: 730,283.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,787.52 : 1,928,695.86 = 486,852.12 : x
  2. Step 2: Convert to fraction form
    1,285,787.52/1,928,695.86 = 486,852.12/x
  3. Step 3: Cross multiply
    1,285,787.52x = 1,928,695.86 × 486,852.12
  4. Step 4: Simplify right side
    1,285,787.52x = 938,989,668,276.22
  5. Step 5: Solve for x
    x = 938,989,668,276.22/1,285,787.52
  6. Step 6: Final answer
    x = 730,283.70

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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.