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Finding the Fourth Proportional to 681,521.52, 940,457.44 and 375,580.82

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Solution

The fourth proportional to 681,521.52, 940,457.44 and 375,580.82 is: 518,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,521.52 : 940,457.44 = 375,580.82 : x
  2. Step 2: Convert to fraction form
    681,521.52/940,457.44 = 375,580.82/x
  3. Step 3: Cross multiply
    681,521.52x = 940,457.44 × 375,580.82
  4. Step 4: Simplify right side
    681,521.52x = 353,217,776,268.69
  5. Step 5: Solve for x
    x = 353,217,776,268.69/681,521.52
  6. Step 6: Final answer
    x = 518,278.24

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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.