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Finding the Fourth Proportional to 558,686.49, 838,025.34 and 369,991.32

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Solution

The fourth proportional to 558,686.49, 838,025.34 and 369,991.32 is: 554,984.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,686.49 : 838,025.34 = 369,991.32 : x
  2. Step 2: Convert to fraction form
    558,686.49/838,025.34 = 369,991.32/x
  3. Step 3: Cross multiply
    558,686.49x = 838,025.34 × 369,991.32
  4. Step 4: Simplify right side
    558,686.49x = 310,062,101,740.05
  5. Step 5: Solve for x
    x = 310,062,101,740.05/558,686.49
  6. Step 6: Final answer
    x = 554,984.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.