Home / 1,189,796.74-1,641,948.06-645,955.44

Finding the Fourth Proportional to 1,189,796.74, 1,641,948.06 and 645,955.44

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Solution

The fourth proportional to 1,189,796.74, 1,641,948.06 and 645,955.44 is: 891,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,796.74 : 1,641,948.06 = 645,955.44 : x
  2. Step 2: Convert to fraction form
    1,189,796.74/1,641,948.06 = 645,955.44/x
  3. Step 3: Cross multiply
    1,189,796.74x = 1,641,948.06 × 645,955.44
  4. Step 4: Simplify right side
    1,189,796.74x = 1,060,625,281,554.45
  5. Step 5: Solve for x
    x = 1,060,625,281,554.45/1,189,796.74
  6. Step 6: Final answer
    x = 891,434.01

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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.