Home / 474,939.46-655,416-260,083.72

Finding the Fourth Proportional to 474,939.46, 655,416 and 260,083.72

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Solution

The fourth proportional to 474,939.46, 655,416 and 260,083.72 is: 358,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,939.46 : 655,416 = 260,083.72 : x
  2. Step 2: Convert to fraction form
    474,939.46/655,416 = 260,083.72/x
  3. Step 3: Cross multiply
    474,939.46x = 655,416 × 260,083.72
  4. Step 4: Simplify right side
    474,939.46x = 170,463,031,427.52
  5. Step 5: Solve for x
    x = 170,463,031,427.52/474,939.46
  6. Step 6: Final answer
    x = 358,915.28

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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.