Home / 628,008.40-942,070.20-207,285.20

Finding the Fourth Proportional to 628,008.40, 942,070.20 and 207,285.20

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Solution

The fourth proportional to 628,008.40, 942,070.20 and 207,285.20 is: 310,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,008.40 : 942,070.20 = 207,285.20 : x
  2. Step 2: Convert to fraction form
    628,008.40/942,070.20 = 207,285.20/x
  3. Step 3: Cross multiply
    628,008.40x = 942,070.20 × 207,285.20
  4. Step 4: Simplify right side
    628,008.40x = 195,277,209,821.04
  5. Step 5: Solve for x
    x = 195,277,209,821.04/628,008.40
  6. Step 6: Final answer
    x = 310,946.81

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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.