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Finding the Fourth Proportional to 803,012.64, 1,108,250.02 and 480,722.64

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Solution

The fourth proportional to 803,012.64, 1,108,250.02 and 480,722.64 is: 663,452.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,012.64 : 1,108,250.02 = 480,722.64 : x
  2. Step 2: Convert to fraction form
    803,012.64/1,108,250.02 = 480,722.64/x
  3. Step 3: Cross multiply
    803,012.64x = 1,108,250.02 × 480,722.64
  4. Step 4: Simplify right side
    803,012.64x = 532,760,875,394.45
  5. Step 5: Solve for x
    x = 532,760,875,394.45/803,012.64
  6. Step 6: Final answer
    x = 663,452.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.