Home / 405,328.72-559,712.28-252,627.52

Finding the Fourth Proportional to 405,328.72, 559,712.28 and 252,627.52

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Solution

The fourth proportional to 405,328.72, 559,712.28 and 252,627.52 is: 348,849.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,328.72 : 559,712.28 = 252,627.52 : x
  2. Step 2: Convert to fraction form
    405,328.72/559,712.28 = 252,627.52/x
  3. Step 3: Cross multiply
    405,328.72x = 559,712.28 × 252,627.52
  4. Step 4: Simplify right side
    405,328.72x = 141,398,725,209.95
  5. Step 5: Solve for x
    x = 141,398,725,209.95/405,328.72
  6. Step 6: Final answer
    x = 348,849.51

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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.