Home / 738,009.54-1,107,435.27-288,766.98

Finding the Fourth Proportional to 738,009.54, 1,107,435.27 and 288,766.98

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Solution

The fourth proportional to 738,009.54, 1,107,435.27 and 288,766.98 is: 433,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,009.54 : 1,107,435.27 = 288,766.98 : x
  2. Step 2: Convert to fraction form
    738,009.54/1,107,435.27 = 288,766.98/x
  3. Step 3: Cross multiply
    738,009.54x = 1,107,435.27 × 288,766.98
  4. Step 4: Simplify right side
    738,009.54x = 319,790,738,463.39
  5. Step 5: Solve for x
    x = 319,790,738,463.39/738,009.54
  6. Step 6: Final answer
    x = 433,315.18

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Double scale
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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.