Home / 628,864.94-867,832.30-342,382.52

Finding the Fourth Proportional to 628,864.94, 867,832.30 and 342,382.52

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Solution

The fourth proportional to 628,864.94, 867,832.30 and 342,382.52 is: 472,487.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,864.94 : 867,832.30 = 342,382.52 : x
  2. Step 2: Convert to fraction form
    628,864.94/867,832.30 = 342,382.52/x
  3. Step 3: Cross multiply
    628,864.94x = 867,832.30 × 342,382.52
  4. Step 4: Simplify right side
    628,864.94x = 297,130,609,811.40
  5. Step 5: Solve for x
    x = 297,130,609,811.40/628,864.94
  6. Step 6: Final answer
    x = 472,487.16

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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.