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Finding the Fourth Proportional to 626,374.84, 864,399.57 and 339,894.91

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Solution

The fourth proportional to 626,374.84, 864,399.57 and 339,894.91 is: 469,056.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,374.84 : 864,399.57 = 339,894.91 : x
  2. Step 2: Convert to fraction form
    626,374.84/864,399.57 = 339,894.91/x
  3. Step 3: Cross multiply
    626,374.84x = 864,399.57 × 339,894.91
  4. Step 4: Simplify right side
    626,374.84x = 293,805,012,349.71
  5. Step 5: Solve for x
    x = 293,805,012,349.71/626,374.84
  6. Step 6: Final answer
    x = 469,056.22

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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.