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Finding the Fourth Proportional to 630,646.80, 945,407.59 and 231,194.29

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Solution

The fourth proportional to 630,646.80, 945,407.59 and 231,194.29 is: 346,585.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,646.80 : 945,407.59 = 231,194.29 : x
  2. Step 2: Convert to fraction form
    630,646.80/945,407.59 = 231,194.29/x
  3. Step 3: Cross multiply
    630,646.80x = 945,407.59 × 231,194.29
  4. Step 4: Simplify right side
    630,646.80x = 218,572,836,530.66
  5. Step 5: Solve for x
    x = 218,572,836,530.66/630,646.80
  6. Step 6: Final answer
    x = 346,585.18

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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.