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Finding the Fourth Proportional to 992,380.98, 1,488,582.98 and 943,979.25

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Solution

The fourth proportional to 992,380.98, 1,488,582.98 and 943,979.25 is: 1,415,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,380.98 : 1,488,582.98 = 943,979.25 : x
  2. Step 2: Convert to fraction form
    992,380.98/1,488,582.98 = 943,979.25/x
  3. Step 3: Cross multiply
    992,380.98x = 1,488,582.98 × 943,979.25
  4. Step 4: Simplify right side
    992,380.98x = 1,405,191,440,303.27
  5. Step 5: Solve for x
    x = 1,405,191,440,303.27/992,380.98
  6. Step 6: Final answer
    x = 1,415,979.82

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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.