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Finding the Fourth Proportional to 650,825.55, 898,113.02 and 378,901.26

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Solution

The fourth proportional to 650,825.55, 898,113.02 and 378,901.26 is: 522,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,825.55 : 898,113.02 = 378,901.26 : x
  2. Step 2: Convert to fraction form
    650,825.55/898,113.02 = 378,901.26/x
  3. Step 3: Cross multiply
    650,825.55x = 898,113.02 × 378,901.26
  4. Step 4: Simplify right side
    650,825.55x = 340,296,153,005.90
  5. Step 5: Solve for x
    x = 340,296,153,005.90/650,825.55
  6. Step 6: Final answer
    x = 522,868.46

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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.