Home / 722,845.44-997,583.76-400,586.40

Finding the Fourth Proportional to 722,845.44, 997,583.76 and 400,586.40

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Solution

The fourth proportional to 722,845.44, 997,583.76 and 400,586.40 is: 552,840.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,845.44 : 997,583.76 = 400,586.40 : x
  2. Step 2: Convert to fraction form
    722,845.44/997,583.76 = 400,586.40/x
  3. Step 3: Cross multiply
    722,845.44x = 997,583.76 × 400,586.40
  4. Step 4: Simplify right side
    722,845.44x = 399,618,487,116.86
  5. Step 5: Solve for x
    x = 399,618,487,116.86/722,845.44
  6. Step 6: Final answer
    x = 552,840.85

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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.