Home / 748,438.80-1,122,548.85-215,904.30

Finding the Fourth Proportional to 748,438.80, 1,122,548.85 and 215,904.30

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Solution

The fourth proportional to 748,438.80, 1,122,548.85 and 215,904.30 is: 323,824.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,438.80 : 1,122,548.85 = 215,904.30 : x
  2. Step 2: Convert to fraction form
    748,438.80/1,122,548.85 = 215,904.30/x
  3. Step 3: Cross multiply
    748,438.80x = 1,122,548.85 × 215,904.30
  4. Step 4: Simplify right side
    748,438.80x = 242,363,123,675.06
  5. Step 5: Solve for x
    x = 242,363,123,675.06/748,438.80
  6. Step 6: Final answer
    x = 323,824.91

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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.