Home / 628,470.64-942,707.94-155,156.08

Finding the Fourth Proportional to 628,470.64, 942,707.94 and 155,156.08

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Solution

The fourth proportional to 628,470.64, 942,707.94 and 155,156.08 is: 232,734.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,470.64 : 942,707.94 = 155,156.08 : x
  2. Step 2: Convert to fraction form
    628,470.64/942,707.94 = 155,156.08/x
  3. Step 3: Cross multiply
    628,470.64x = 942,707.94 × 155,156.08
  4. Step 4: Simplify right side
    628,470.64x = 146,266,868,555.28
  5. Step 5: Solve for x
    x = 146,266,868,555.28/628,470.64
  6. Step 6: Final answer
    x = 232,734.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.