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Finding the Fourth Proportional to 554,965.20, 832,447.80 and 330,433.20

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Solution

The fourth proportional to 554,965.20, 832,447.80 and 330,433.20 is: 495,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,965.20 : 832,447.80 = 330,433.20 : x
  2. Step 2: Convert to fraction form
    554,965.20/832,447.80 = 330,433.20/x
  3. Step 3: Cross multiply
    554,965.20x = 832,447.80 × 330,433.20
  4. Step 4: Simplify right side
    554,965.20x = 275,068,390,386.96
  5. Step 5: Solve for x
    x = 275,068,390,386.96/554,965.20
  6. Step 6: Final answer
    x = 495,649.80

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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.