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Finding the Fourth Proportional to 554,983.93, 765,880.21 and 300,335.12

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Solution

The fourth proportional to 554,983.93, 765,880.21 and 300,335.12 is: 414,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,983.93 : 765,880.21 = 300,335.12 : x
  2. Step 2: Convert to fraction form
    554,983.93/765,880.21 = 300,335.12/x
  3. Step 3: Cross multiply
    554,983.93x = 765,880.21 × 300,335.12
  4. Step 4: Simplify right side
    554,983.93x = 230,020,724,775.98
  5. Step 5: Solve for x
    x = 230,020,724,775.98/554,983.93
  6. Step 6: Final answer
    x = 414,463.76

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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.