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Finding the Fourth Proportional to 554,947.61, 765,829.62 and 300,298.73

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Solution

The fourth proportional to 554,947.61, 765,829.62 and 300,298.73 is: 414,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,947.61 : 765,829.62 = 300,298.73 : x
  2. Step 2: Convert to fraction form
    554,947.61/765,829.62 = 300,298.73/x
  3. Step 3: Cross multiply
    554,947.61x = 765,829.62 × 300,298.73
  4. Step 4: Simplify right side
    554,947.61x = 229,977,658,453.23
  5. Step 5: Solve for x
    x = 229,977,658,453.23/554,947.61
  6. Step 6: Final answer
    x = 414,413.28

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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.