Home / 645,712.72-968,246.20-240,767.76

Finding the Fourth Proportional to 645,712.72, 968,246.20 and 240,767.76

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Solution

The fourth proportional to 645,712.72, 968,246.20 and 240,767.76 is: 361,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,712.72 : 968,246.20 = 240,767.76 : x
  2. Step 2: Convert to fraction form
    645,712.72/968,246.20 = 240,767.76/x
  3. Step 3: Cross multiply
    645,712.72x = 968,246.20 × 240,767.76
  4. Step 4: Simplify right side
    645,712.72x = 233,122,468,702.51
  5. Step 5: Solve for x
    x = 233,122,468,702.51/645,712.72
  6. Step 6: Final answer
    x = 361,031.25

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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.