Home / 762,013.10-1,142,219.46-256,398.54

Finding the Fourth Proportional to 762,013.10, 1,142,219.46 and 256,398.54

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Solution

The fourth proportional to 762,013.10, 1,142,219.46 and 256,398.54 is: 384,328.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,013.10 : 1,142,219.46 = 256,398.54 : x
  2. Step 2: Convert to fraction form
    762,013.10/1,142,219.46 = 256,398.54/x
  3. Step 3: Cross multiply
    762,013.10x = 1,142,219.46 × 256,398.54
  4. Step 4: Simplify right side
    762,013.10x = 292,863,401,903.59
  5. Step 5: Solve for x
    x = 292,863,401,903.59/762,013.10
  6. Step 6: Final answer
    x = 384,328.57

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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.