Home / 1,185,280.02-1,635,673.96-641,403.90

Finding the Fourth Proportional to 1,185,280.02, 1,635,673.96 and 641,403.90

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Solution

The fourth proportional to 1,185,280.02, 1,635,673.96 and 641,403.90 is: 885,130.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,280.02 : 1,635,673.96 = 641,403.90 : x
  2. Step 2: Convert to fraction form
    1,185,280.02/1,635,673.96 = 641,403.90/x
  3. Step 3: Cross multiply
    1,185,280.02x = 1,635,673.96 × 641,403.90
  4. Step 4: Simplify right side
    1,185,280.02x = 1,049,127,657,072.44
  5. Step 5: Solve for x
    x = 1,049,127,657,072.44/1,185,280.02
  6. Step 6: Final answer
    x = 885,130.64

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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.