Home / 1,190,774.40-1,643,280.16-646,914.40

Finding the Fourth Proportional to 1,190,774.40, 1,643,280.16 and 646,914.40

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Solution

The fourth proportional to 1,190,774.40, 1,643,280.16 and 646,914.40 is: 892,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,774.40 : 1,643,280.16 = 646,914.40 : x
  2. Step 2: Convert to fraction form
    1,190,774.40/1,643,280.16 = 646,914.40/x
  3. Step 3: Cross multiply
    1,190,774.40x = 1,643,280.16 × 646,914.40
  4. Step 4: Simplify right side
    1,190,774.40x = 1,063,061,598,738.30
  5. Step 5: Solve for x
    x = 1,063,061,598,738.30/1,190,774.40
  6. Step 6: Final answer
    x = 892,748.11

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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.