Home / 628,470.16-942,707.20-155,155.56

Finding the Fourth Proportional to 628,470.16, 942,707.20 and 155,155.56

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Solution

The fourth proportional to 628,470.16, 942,707.20 and 155,155.56 is: 232,733.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,470.16 : 942,707.20 = 155,155.56 : x
  2. Step 2: Convert to fraction form
    628,470.16/942,707.20 = 155,155.56/x
  3. Step 3: Cross multiply
    628,470.16x = 942,707.20 × 155,155.56
  4. Step 4: Simplify right side
    628,470.16x = 146,266,263,532.03
  5. Step 5: Solve for x
    x = 146,266,263,532.03/628,470.16
  6. Step 6: Final answer
    x = 232,733.82

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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.