Home / 1,326,135.45-1,990,239.98-616,251.45

Finding the Fourth Proportional to 1,326,135.45, 1,990,239.98 and 616,251.45

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Solution

The fourth proportional to 1,326,135.45, 1,990,239.98 and 616,251.45 is: 924,858.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,135.45 : 1,990,239.98 = 616,251.45 : x
  2. Step 2: Convert to fraction form
    1,326,135.45/1,990,239.98 = 616,251.45/x
  3. Step 3: Cross multiply
    1,326,135.45x = 1,990,239.98 × 616,251.45
  4. Step 4: Simplify right side
    1,326,135.45x = 1,226,488,270,441.71
  5. Step 5: Solve for x
    x = 1,226,488,270,441.71/1,326,135.45
  6. Step 6: Final answer
    x = 924,858.97

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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.