Home / 1,284,191.96-1,772,167.02-740,328.80

Finding the Fourth Proportional to 1,284,191.96, 1,772,167.02 and 740,328.80

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Solution

The fourth proportional to 1,284,191.96, 1,772,167.02 and 740,328.80 is: 1,021,643.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,191.96 : 1,772,167.02 = 740,328.80 : x
  2. Step 2: Convert to fraction form
    1,284,191.96/1,772,167.02 = 740,328.80/x
  3. Step 3: Cross multiply
    1,284,191.96x = 1,772,167.02 × 740,328.80
  4. Step 4: Simplify right side
    1,284,191.96x = 1,311,986,283,316.18
  5. Step 5: Solve for x
    x = 1,311,986,283,316.18/1,284,191.96
  6. Step 6: Final answer
    x = 1,021,643.43

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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.