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Finding the Fourth Proportional to 559,637.12, 772,276.70 and 304,982.84

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Solution

The fourth proportional to 559,637.12, 772,276.70 and 304,982.84 is: 420,864.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,637.12 : 772,276.70 = 304,982.84 : x
  2. Step 2: Convert to fraction form
    559,637.12/772,276.70 = 304,982.84/x
  3. Step 3: Cross multiply
    559,637.12x = 772,276.70 × 304,982.84
  4. Step 4: Simplify right side
    559,637.12x = 235,531,139,706.91
  5. Step 5: Solve for x
    x = 235,531,139,706.91/559,637.12
  6. Step 6: Final answer
    x = 420,864.04

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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.