Home / 738,729.30-1,108,093.95-289,300.80

Finding the Fourth Proportional to 738,729.30, 1,108,093.95 and 289,300.80

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Solution

The fourth proportional to 738,729.30, 1,108,093.95 and 289,300.80 is: 433,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,729.30 : 1,108,093.95 = 289,300.80 : x
  2. Step 2: Convert to fraction form
    738,729.30/1,108,093.95 = 289,300.80/x
  3. Step 3: Cross multiply
    738,729.30x = 1,108,093.95 × 289,300.80
  4. Step 4: Simplify right side
    738,729.30x = 320,572,466,210.16
  5. Step 5: Solve for x
    x = 320,572,466,210.16/738,729.30
  6. Step 6: Final answer
    x = 433,951.20

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Similar ratio
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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.