Home / 722,975.20-997,705.78-400,733.72

Finding the Fourth Proportional to 722,975.20, 997,705.78 and 400,733.72

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Solution

The fourth proportional to 722,975.20, 997,705.78 and 400,733.72 is: 553,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,975.20 : 997,705.78 = 400,733.72 : x
  2. Step 2: Convert to fraction form
    722,975.20/997,705.78 = 400,733.72/x
  3. Step 3: Cross multiply
    722,975.20x = 997,705.78 × 400,733.72
  4. Step 4: Simplify right side
    722,975.20x = 399,814,348,684.90
  5. Step 5: Solve for x
    x = 399,814,348,684.90/722,975.20
  6. Step 6: Final answer
    x = 553,012.54

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1.5x scale

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.