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Finding the Fourth Proportional to 651,161.57, 898,440.64 and 375,603.67

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Solution

The fourth proportional to 651,161.57, 898,440.64 and 375,603.67 is: 518,239.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,161.57 : 898,440.64 = 375,603.67 : x
  2. Step 2: Convert to fraction form
    651,161.57/898,440.64 = 375,603.67/x
  3. Step 3: Cross multiply
    651,161.57x = 898,440.64 × 375,603.67
  4. Step 4: Simplify right side
    651,161.57x = 337,457,601,661.15
  5. Step 5: Solve for x
    x = 337,457,601,661.15/651,161.57
  6. Step 6: Final answer
    x = 518,239.43

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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.