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Finding the Fourth Proportional to 559,577.89, 772,215.06 and 304,929.10

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Solution

The fourth proportional to 559,577.89, 772,215.06 and 304,929.10 is: 420,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,577.89 : 772,215.06 = 304,929.10 : x
  2. Step 2: Convert to fraction form
    559,577.89/772,215.06 = 304,929.10/x
  3. Step 3: Cross multiply
    559,577.89x = 772,215.06 × 304,929.10
  4. Step 4: Simplify right side
    559,577.89x = 235,470,843,252.25
  5. Step 5: Solve for x
    x = 235,470,843,252.25/559,577.89
  6. Step 6: Final answer
    x = 420,800.83

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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.