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Finding the Fourth Proportional to 557,393.04, 835,503.84 and 272,690.40

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Solution

The fourth proportional to 557,393.04, 835,503.84 and 272,690.40 is: 408,749.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,393.04 : 835,503.84 = 272,690.40 : x
  2. Step 2: Convert to fraction form
    557,393.04/835,503.84 = 272,690.40/x
  3. Step 3: Cross multiply
    557,393.04x = 835,503.84 × 272,690.40
  4. Step 4: Simplify right side
    557,393.04x = 227,833,876,331.14
  5. Step 5: Solve for x
    x = 227,833,876,331.14/557,393.04
  6. Step 6: Final answer
    x = 408,749.05

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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.