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Finding the Fourth Proportional to 543,307.80, 814,305.60 and 276,931.20

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Solution

The fourth proportional to 543,307.80, 814,305.60 and 276,931.20 is: 415,062.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,307.80 : 814,305.60 = 276,931.20 : x
  2. Step 2: Convert to fraction form
    543,307.80/814,305.60 = 276,931.20/x
  3. Step 3: Cross multiply
    543,307.80x = 814,305.60 × 276,931.20
  4. Step 4: Simplify right side
    543,307.80x = 225,506,626,974.72
  5. Step 5: Solve for x
    x = 225,506,626,974.72/543,307.80
  6. Step 6: Final answer
    x = 415,062.38

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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.