Home / 464,336.46-640,512.83-291,981.65

Finding the Fourth Proportional to 464,336.46, 640,512.83 and 291,981.65

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Solution

The fourth proportional to 464,336.46, 640,512.83 and 291,981.65 is: 402,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,336.46 : 640,512.83 = 291,981.65 : x
  2. Step 2: Convert to fraction form
    464,336.46/640,512.83 = 291,981.65/x
  3. Step 3: Cross multiply
    464,336.46x = 640,512.83 × 291,981.65
  4. Step 4: Simplify right side
    464,336.46x = 187,017,988,287.10
  5. Step 5: Solve for x
    x = 187,017,988,287.10/464,336.46
  6. Step 6: Final answer
    x = 402,763.95

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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.