Home / 749,205.80-1,123,905.90-370,320.20

Finding the Fourth Proportional to 749,205.80, 1,123,905.90 and 370,320.20

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Solution

The fourth proportional to 749,205.80, 1,123,905.90 and 370,320.20 is: 555,528.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,205.80 : 1,123,905.90 = 370,320.20 : x
  2. Step 2: Convert to fraction form
    749,205.80/1,123,905.90 = 370,320.20/x
  3. Step 3: Cross multiply
    749,205.80x = 1,123,905.90 × 370,320.20
  4. Step 4: Simplify right side
    749,205.80x = 416,205,057,669.18
  5. Step 5: Solve for x
    x = 416,205,057,669.18/749,205.80
  6. Step 6: Final answer
    x = 555,528.34

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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.