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Finding the Fourth Proportional to 652,376.63, 900,251.21 and 394,316.10

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Solution

The fourth proportional to 652,376.63, 900,251.21 and 394,316.10 is: 544,138.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,376.63 : 900,251.21 = 394,316.10 : x
  2. Step 2: Convert to fraction form
    652,376.63/900,251.21 = 394,316.10/x
  3. Step 3: Cross multiply
    652,376.63x = 900,251.21 × 394,316.10
  4. Step 4: Simplify right side
    652,376.63x = 354,983,547,133.27
  5. Step 5: Solve for x
    x = 354,983,547,133.27/652,376.63
  6. Step 6: Final answer
    x = 544,138.97

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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.