Home / 722,974.80-1,084,462.20-457,254.30

Finding the Fourth Proportional to 722,974.80, 1,084,462.20 and 457,254.30

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Solution

The fourth proportional to 722,974.80, 1,084,462.20 and 457,254.30 is: 685,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,974.80 : 1,084,462.20 = 457,254.30 : x
  2. Step 2: Convert to fraction form
    722,974.80/1,084,462.20 = 457,254.30/x
  3. Step 3: Cross multiply
    722,974.80x = 1,084,462.20 × 457,254.30
  4. Step 4: Simplify right side
    722,974.80x = 495,875,004,137.46
  5. Step 5: Solve for x
    x = 495,875,004,137.46/722,974.80
  6. Step 6: Final answer
    x = 685,881.45

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Double scale
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Similar ratio
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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.