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Finding the Fourth Proportional to 626,402.93, 864,426.74 and 368,308.98

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Solution

The fourth proportional to 626,402.93, 864,426.74 and 368,308.98 is: 508,260.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,402.93 : 864,426.74 = 368,308.98 : x
  2. Step 2: Convert to fraction form
    626,402.93/864,426.74 = 368,308.98/x
  3. Step 3: Cross multiply
    626,402.93x = 864,426.74 × 368,308.98
  4. Step 4: Simplify right side
    626,402.93x = 318,376,129,052.58
  5. Step 5: Solve for x
    x = 318,376,129,052.58/626,402.93
  6. Step 6: Final answer
    x = 508,260.92

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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.