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Finding the Fourth Proportional to 628,947.84, 867,850.32 and 360,624

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Solution

The fourth proportional to 628,947.84, 867,850.32 and 360,624 is: 497,605.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,947.84 : 867,850.32 = 360,624 : x
  2. Step 2: Convert to fraction form
    628,947.84/867,850.32 = 360,624/x
  3. Step 3: Cross multiply
    628,947.84x = 867,850.32 × 360,624
  4. Step 4: Simplify right side
    628,947.84x = 312,967,653,799.68
  5. Step 5: Solve for x
    x = 312,967,653,799.68/628,947.84
  6. Step 6: Final answer
    x = 497,605.10

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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.