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Finding the Fourth Proportional to 722,545.57, 997,099.84 and 400,254.67

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Solution

The fourth proportional to 722,545.57, 997,099.84 and 400,254.67 is: 552,344.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,545.57 : 997,099.84 = 400,254.67 : x
  2. Step 2: Convert to fraction form
    722,545.57/997,099.84 = 400,254.67/x
  3. Step 3: Cross multiply
    722,545.57x = 997,099.84 × 400,254.67
  4. Step 4: Simplify right side
    722,545.57x = 399,093,867,416.25
  5. Step 5: Solve for x
    x = 399,093,867,416.25/722,545.57
  6. Step 6: Final answer
    x = 552,344.22

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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.