Home / 1,191,188.61-1,643,008.95-783,160.02

Finding the Fourth Proportional to 1,191,188.61, 1,643,008.95 and 783,160.02

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Solution

The fourth proportional to 1,191,188.61, 1,643,008.95 and 783,160.02 is: 1,080,214.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,188.61 : 1,643,008.95 = 783,160.02 : x
  2. Step 2: Convert to fraction form
    1,191,188.61/1,643,008.95 = 783,160.02/x
  3. Step 3: Cross multiply
    1,191,188.61x = 1,643,008.95 × 783,160.02
  4. Step 4: Simplify right side
    1,191,188.61x = 1,286,738,922,142.18
  5. Step 5: Solve for x
    x = 1,286,738,922,142.18/1,191,188.61
  6. Step 6: Final answer
    x = 1,080,214.26

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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.