Home / 738,549.48-1,107,380.48-288,734.60

Finding the Fourth Proportional to 738,549.48, 1,107,380.48 and 288,734.60

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Solution

The fourth proportional to 738,549.48, 1,107,380.48 and 288,734.60 is: 432,928.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,549.48 : 1,107,380.48 = 288,734.60 : x
  2. Step 2: Convert to fraction form
    738,549.48/1,107,380.48 = 288,734.60/x
  3. Step 3: Cross multiply
    738,549.48x = 1,107,380.48 × 288,734.60
  4. Step 4: Simplify right side
    738,549.48x = 319,739,059,940.61
  5. Step 5: Solve for x
    x = 319,739,059,940.61/738,549.48
  6. Step 6: Final answer
    x = 432,928.42

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1.5x scale

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.