Home / 489,109.60-733,664.40-355,265.20

Finding the Fourth Proportional to 489,109.60, 733,664.40 and 355,265.20

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Solution

The fourth proportional to 489,109.60, 733,664.40 and 355,265.20 is: 532,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,109.60 : 733,664.40 = 355,265.20 : x
  2. Step 2: Convert to fraction form
    489,109.60/733,664.40 = 355,265.20/x
  3. Step 3: Cross multiply
    489,109.60x = 733,664.40 × 355,265.20
  4. Step 4: Simplify right side
    489,109.60x = 260,645,429,798.88
  5. Step 5: Solve for x
    x = 260,645,429,798.88/489,109.60
  6. Step 6: Final answer
    x = 532,897.80

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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.