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Finding the Fourth Proportional to 441,031.80, 661,547.70 and 307,630.20

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Solution

The fourth proportional to 441,031.80, 661,547.70 and 307,630.20 is: 461,445.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,031.80 : 661,547.70 = 307,630.20 : x
  2. Step 2: Convert to fraction form
    441,031.80/661,547.70 = 307,630.20/x
  3. Step 3: Cross multiply
    441,031.80x = 661,547.70 × 307,630.20
  4. Step 4: Simplify right side
    441,031.80x = 203,512,051,260.54
  5. Step 5: Solve for x
    x = 203,512,051,260.54/441,031.80
  6. Step 6: Final answer
    x = 461,445.30

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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.