Home / 628,004.40-942,064.20-207,281.20

Finding the Fourth Proportional to 628,004.40, 942,064.20 and 207,281.20

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Solution

The fourth proportional to 628,004.40, 942,064.20 and 207,281.20 is: 310,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,004.40 : 942,064.20 = 207,281.20 : x
  2. Step 2: Convert to fraction form
    628,004.40/942,064.20 = 207,281.20/x
  3. Step 3: Cross multiply
    628,004.40x = 942,064.20 × 207,281.20
  4. Step 4: Simplify right side
    628,004.40x = 195,272,197,853.04
  5. Step 5: Solve for x
    x = 195,272,197,853.04/628,004.40
  6. Step 6: Final answer
    x = 310,940.81

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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.