Home / 858,398.25-1,287,827.01-297,432.75

Finding the Fourth Proportional to 858,398.25, 1,287,827.01 and 297,432.75

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Solution

The fourth proportional to 858,398.25, 1,287,827.01 and 297,432.75 is: 446,228.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,398.25 : 1,287,827.01 = 297,432.75 : x
  2. Step 2: Convert to fraction form
    858,398.25/1,287,827.01 = 297,432.75/x
  3. Step 3: Cross multiply
    858,398.25x = 1,287,827.01 × 297,432.75
  4. Step 4: Simplify right side
    858,398.25x = 383,041,929,108.58
  5. Step 5: Solve for x
    x = 383,041,929,108.58/858,398.25
  6. Step 6: Final answer
    x = 446,228.69

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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.