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Finding the Fourth Proportional to 558,430.30, 838,066.44 and 409,053.34

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Solution

The fourth proportional to 558,430.30, 838,066.44 and 409,053.34 is: 613,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,430.30 : 838,066.44 = 409,053.34 : x
  2. Step 2: Convert to fraction form
    558,430.30/838,066.44 = 409,053.34/x
  3. Step 3: Cross multiply
    558,430.30x = 838,066.44 × 409,053.34
  4. Step 4: Simplify right side
    558,430.30x = 342,813,872,233.58
  5. Step 5: Solve for x
    x = 342,813,872,233.58/558,430.30
  6. Step 6: Final answer
    x = 613,888.39

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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.