Home / 1,203,312.40-1,660,604.52-666,768.40

Finding the Fourth Proportional to 1,203,312.40, 1,660,604.52 and 666,768.40

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Solution

The fourth proportional to 1,203,312.40, 1,660,604.52 and 666,768.40 is: 920,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,312.40 : 1,660,604.52 = 666,768.40 : x
  2. Step 2: Convert to fraction form
    1,203,312.40/1,660,604.52 = 666,768.40/x
  3. Step 3: Cross multiply
    1,203,312.40x = 1,660,604.52 × 666,768.40
  4. Step 4: Simplify right side
    1,203,312.40x = 1,107,238,618,833.17
  5. Step 5: Solve for x
    x = 1,107,238,618,833.17/1,203,312.40
  6. Step 6: Final answer
    x = 920,158.90

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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.