Home / 1,078,632.20-1,618,566.50-438,817.86

Finding the Fourth Proportional to 1,078,632.20, 1,618,566.50 and 438,817.86

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Solution

The fourth proportional to 1,078,632.20, 1,618,566.50 and 438,817.86 is: 658,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,632.20 : 1,618,566.50 = 438,817.86 : x
  2. Step 2: Convert to fraction form
    1,078,632.20/1,618,566.50 = 438,817.86/x
  3. Step 3: Cross multiply
    1,078,632.20x = 1,618,566.50 × 438,817.86
  4. Step 4: Simplify right side
    1,078,632.20x = 710,255,888,894.74
  5. Step 5: Solve for x
    x = 710,255,888,894.74/1,078,632.20
  6. Step 6: Final answer
    x = 658,478.29

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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.