Home / 1,226,547.09-1,840,126.82-427,840.11

Finding the Fourth Proportional to 1,226,547.09, 1,840,126.82 and 427,840.11

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Solution

The fourth proportional to 1,226,547.09, 1,840,126.82 and 427,840.11 is: 641,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,547.09 : 1,840,126.82 = 427,840.11 : x
  2. Step 2: Convert to fraction form
    1,226,547.09/1,840,126.82 = 427,840.11/x
  3. Step 3: Cross multiply
    1,226,547.09x = 1,840,126.82 × 427,840.11
  4. Step 4: Simplify right side
    1,226,547.09x = 787,280,058,943.55
  5. Step 5: Solve for x
    x = 787,280,058,943.55/1,226,547.09
  6. Step 6: Final answer
    x = 641,866.97

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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.