Home / 630,287.28-945,431.04-209,566.80

Finding the Fourth Proportional to 630,287.28, 945,431.04 and 209,566.80

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Solution

The fourth proportional to 630,287.28, 945,431.04 and 209,566.80 is: 314,350.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,287.28 : 945,431.04 = 209,566.80 : x
  2. Step 2: Convert to fraction form
    630,287.28/945,431.04 = 209,566.80/x
  3. Step 3: Cross multiply
    630,287.28x = 945,431.04 × 209,566.80
  4. Step 4: Simplify right side
    630,287.28x = 198,130,957,673.47
  5. Step 5: Solve for x
    x = 198,130,957,673.47/630,287.28
  6. Step 6: Final answer
    x = 314,350.24

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1.5x scale

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.