Home / 738,551.60-1,108,171.86-289,155.90

Finding the Fourth Proportional to 738,551.60, 1,108,171.86 and 289,155.90

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Solution

The fourth proportional to 738,551.60, 1,108,171.86 and 289,155.90 is: 433,868.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,551.60 : 1,108,171.86 = 289,155.90 : x
  2. Step 2: Convert to fraction form
    738,551.60/1,108,171.86 = 289,155.90/x
  3. Step 3: Cross multiply
    738,551.60x = 1,108,171.86 × 289,155.90
  4. Step 4: Simplify right side
    738,551.60x = 320,434,431,532.97
  5. Step 5: Solve for x
    x = 320,434,431,532.97/738,551.60
  6. Step 6: Final answer
    x = 433,868.71

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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.