Home / 722,989.80-1,084,484.70-457,269.30

Finding the Fourth Proportional to 722,989.80, 1,084,484.70 and 457,269.30

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Solution

The fourth proportional to 722,989.80, 1,084,484.70 and 457,269.30 is: 685,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,989.80 : 1,084,484.70 = 457,269.30 : x
  2. Step 2: Convert to fraction form
    722,989.80/1,084,484.70 = 457,269.30/x
  3. Step 3: Cross multiply
    722,989.80x = 1,084,484.70 × 457,269.30
  4. Step 4: Simplify right side
    722,989.80x = 495,901,559,629.71
  5. Step 5: Solve for x
    x = 495,901,559,629.71/722,989.80
  6. Step 6: Final answer
    x = 685,903.95

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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.