Home / 1,641,432.78-2,264,230.80-987,605.64

Finding the Fourth Proportional to 1,641,432.78, 2,264,230.80 and 987,605.64

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Solution

The fourth proportional to 1,641,432.78, 2,264,230.80 and 987,605.64 is: 1,362,326.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,641,432.78 : 2,264,230.80 = 987,605.64 : x
  2. Step 2: Convert to fraction form
    1,641,432.78/2,264,230.80 = 987,605.64/x
  3. Step 3: Cross multiply
    1,641,432.78x = 2,264,230.80 × 987,605.64
  4. Step 4: Simplify right side
    1,641,432.78x = 2,236,167,108,341.71
  5. Step 5: Solve for x
    x = 2,236,167,108,341.71/1,641,432.78
  6. Step 6: Final answer
    x = 1,362,326.34

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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.