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Finding the Fourth Proportional to 722,884.47, 997,586.34 and 400,599.90

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Solution

The fourth proportional to 722,884.47, 997,586.34 and 400,599.90 is: 552,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,884.47 : 997,586.34 = 400,599.90 : x
  2. Step 2: Convert to fraction form
    722,884.47/997,586.34 = 400,599.90/x
  3. Step 3: Cross multiply
    722,884.47x = 997,586.34 × 400,599.90
  4. Step 4: Simplify right side
    722,884.47x = 399,632,988,045.37
  5. Step 5: Solve for x
    x = 399,632,988,045.37/722,884.47
  6. Step 6: Final answer
    x = 552,831.06

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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.