Home / 501,424.89-691,962.91-271,981.25

Finding the Fourth Proportional to 501,424.89, 691,962.91 and 271,981.25

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Solution

The fourth proportional to 501,424.89, 691,962.91 and 271,981.25 is: 375,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,424.89 : 691,962.91 = 271,981.25 : x
  2. Step 2: Convert to fraction form
    501,424.89/691,962.91 = 271,981.25/x
  3. Step 3: Cross multiply
    501,424.89x = 691,962.91 × 271,981.25
  4. Step 4: Simplify right side
    501,424.89x = 188,200,937,215.44
  5. Step 5: Solve for x
    x = 188,200,937,215.44/501,424.89
  6. Step 6: Final answer
    x = 375,332.26

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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.