Home / 879,537.76-1,213,764.45-477,129.76

Finding the Fourth Proportional to 879,537.76, 1,213,764.45 and 477,129.76

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Solution

The fourth proportional to 879,537.76, 1,213,764.45 and 477,129.76 is: 658,440.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,537.76 : 1,213,764.45 = 477,129.76 : x
  2. Step 2: Convert to fraction form
    879,537.76/1,213,764.45 = 477,129.76/x
  3. Step 3: Cross multiply
    879,537.76x = 1,213,764.45 × 477,129.76
  4. Step 4: Simplify right side
    879,537.76x = 579,123,140,725.03
  5. Step 5: Solve for x
    x = 579,123,140,725.03/879,537.76
  6. Step 6: Final answer
    x = 658,440.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.