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Finding the Fourth Proportional to 558,942, 771,341.79 and 304,295.01

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Solution

The fourth proportional to 558,942, 771,341.79 and 304,295.01 is: 419,928.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,942 : 771,341.79 = 304,295.01 : x
  2. Step 2: Convert to fraction form
    558,942/771,341.79 = 304,295.01/x
  3. Step 3: Cross multiply
    558,942x = 771,341.79 × 304,295.01
  4. Step 4: Simplify right side
    558,942x = 234,715,457,701.47
  5. Step 5: Solve for x
    x = 234,715,457,701.47/558,942
  6. Step 6: Final answer
    x = 419,928.11

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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.