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Finding the Fourth Proportional to 691,752, 954,617.76 and 373,800

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Solution

The fourth proportional to 691,752, 954,617.76 and 373,800 is: 515,844

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,752 : 954,617.76 = 373,800 : x
  2. Step 2: Convert to fraction form
    691,752/954,617.76 = 373,800/x
  3. Step 3: Cross multiply
    691,752x = 954,617.76 × 373,800
  4. Step 4: Simplify right side
    691,752x = 356,836,118,688
  5. Step 5: Solve for x
    x = 356,836,118,688/691,752
  6. Step 6: Final answer
    x = 515,844

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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.