Home / 559,512.94-772,128-304,864.15

Finding the Fourth Proportional to 559,512.94, 772,128 and 304,864.15

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Solution

The fourth proportional to 559,512.94, 772,128 and 304,864.15 is: 420,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,512.94 : 772,128 = 304,864.15 : x
  2. Step 2: Convert to fraction form
    559,512.94/772,128 = 304,864.15/x
  3. Step 3: Cross multiply
    559,512.94x = 772,128 × 304,864.15
  4. Step 4: Simplify right side
    559,512.94x = 235,394,146,411.20
  5. Step 5: Solve for x
    x = 235,394,146,411.20/559,512.94
  6. Step 6: Final answer
    x = 420,712.60

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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.