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Finding the Fourth Proportional to 626,947.56, 865,204.80 and 368,842.68

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Solution

The fourth proportional to 626,947.56, 865,204.80 and 368,842.68 is: 509,013.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,947.56 : 865,204.80 = 368,842.68 : x
  2. Step 2: Convert to fraction form
    626,947.56/865,204.80 = 368,842.68/x
  3. Step 3: Cross multiply
    626,947.56x = 865,204.80 × 368,842.68
  4. Step 4: Simplify right side
    626,947.56x = 319,124,457,180.86
  5. Step 5: Solve for x
    x = 319,124,457,180.86/626,947.56
  6. Step 6: Final answer
    x = 509,013.00

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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.