Home / 879,072.40-1,318,608.60-429,862.60

Finding the Fourth Proportional to 879,072.40, 1,318,608.60 and 429,862.60

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Solution

The fourth proportional to 879,072.40, 1,318,608.60 and 429,862.60 is: 644,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,072.40 : 1,318,608.60 = 429,862.60 : x
  2. Step 2: Convert to fraction form
    879,072.40/1,318,608.60 = 429,862.60/x
  3. Step 3: Cross multiply
    879,072.40x = 1,318,608.60 × 429,862.60
  4. Step 4: Simplify right side
    879,072.40x = 566,820,521,178.36
  5. Step 5: Solve for x
    x = 566,820,521,178.36/879,072.40
  6. Step 6: Final answer
    x = 644,793.90

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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.