Home / 501,921.18-692,642.61-275,565.06

Finding the Fourth Proportional to 501,921.18, 692,642.61 and 275,565.06

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Solution

The fourth proportional to 501,921.18, 692,642.61 and 275,565.06 is: 380,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,921.18 : 692,642.61 = 275,565.06 : x
  2. Step 2: Convert to fraction form
    501,921.18/692,642.61 = 275,565.06/x
  3. Step 3: Cross multiply
    501,921.18x = 692,642.61 × 275,565.06
  4. Step 4: Simplify right side
    501,921.18x = 190,868,102,383.21
  5. Step 5: Solve for x
    x = 190,868,102,383.21/501,921.18
  6. Step 6: Final answer
    x = 380,275.05

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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.