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Finding the Fourth Proportional to 554,227.52, 830,138.28 and 340,346.36

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Solution

The fourth proportional to 554,227.52, 830,138.28 and 340,346.36 is: 509,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,227.52 : 830,138.28 = 340,346.36 : x
  2. Step 2: Convert to fraction form
    554,227.52/830,138.28 = 340,346.36/x
  3. Step 3: Cross multiply
    554,227.52x = 830,138.28 × 340,346.36
  4. Step 4: Simplify right side
    554,227.52x = 282,534,541,894.66
  5. Step 5: Solve for x
    x = 282,534,541,894.66/554,227.52
  6. Step 6: Final answer
    x = 509,780.79

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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.