Home / 890,418.20-1,230,406.62-648,280.52

Finding the Fourth Proportional to 890,418.20, 1,230,406.62 and 648,280.52

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Solution

The fourth proportional to 890,418.20, 1,230,406.62 and 648,280.52 is: 895,813.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,418.20 : 1,230,406.62 = 648,280.52 : x
  2. Step 2: Convert to fraction form
    890,418.20/1,230,406.62 = 648,280.52/x
  3. Step 3: Cross multiply
    890,418.20x = 1,230,406.62 × 648,280.52
  4. Step 4: Simplify right side
    890,418.20x = 797,648,643,425.04
  5. Step 5: Solve for x
    x = 797,648,643,425.04/890,418.20
  6. Step 6: Final answer
    x = 895,813.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.