Home / 738,101.80-1,106,824.65-288,673.30

Finding the Fourth Proportional to 738,101.80, 1,106,824.65 and 288,673.30

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Solution

The fourth proportional to 738,101.80, 1,106,824.65 and 288,673.30 is: 432,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,101.80 : 1,106,824.65 = 288,673.30 : x
  2. Step 2: Convert to fraction form
    738,101.80/1,106,824.65 = 288,673.30/x
  3. Step 3: Cross multiply
    738,101.80x = 1,106,824.65 × 288,673.30
  4. Step 4: Simplify right side
    738,101.80x = 319,510,724,236.85
  5. Step 5: Solve for x
    x = 319,510,724,236.85/738,101.80
  6. Step 6: Final answer
    x = 432,881.65

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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.