Home / 1,022,999.11-1,411,491.89-660,345.30

Finding the Fourth Proportional to 1,022,999.11, 1,411,491.89 and 660,345.30

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Solution

The fourth proportional to 1,022,999.11, 1,411,491.89 and 660,345.30 is: 911,117.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,999.11 : 1,411,491.89 = 660,345.30 : x
  2. Step 2: Convert to fraction form
    1,022,999.11/1,411,491.89 = 660,345.30/x
  3. Step 3: Cross multiply
    1,022,999.11x = 1,411,491.89 × 660,345.30
  4. Step 4: Simplify right side
    1,022,999.11x = 932,072,037,200.48
  5. Step 5: Solve for x
    x = 932,072,037,200.48/1,022,999.11
  6. Step 6: Final answer
    x = 911,117.16

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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.