Home / 645,139.68-967,731.36-224,419.20

Finding the Fourth Proportional to 645,139.68, 967,731.36 and 224,419.20

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Solution

The fourth proportional to 645,139.68, 967,731.36 and 224,419.20 is: 336,636.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,139.68 : 967,731.36 = 224,419.20 : x
  2. Step 2: Convert to fraction form
    645,139.68/967,731.36 = 224,419.20/x
  3. Step 3: Cross multiply
    645,139.68x = 967,731.36 × 224,419.20
  4. Step 4: Simplify right side
    645,139.68x = 217,177,497,626.11
  5. Step 5: Solve for x
    x = 217,177,497,626.11/645,139.68
  6. Step 6: Final answer
    x = 336,636.40

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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.