Home / 1,306,972.80-1,960,556.40-465,415.20

Finding the Fourth Proportional to 1,306,972.80, 1,960,556.40 and 465,415.20

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Solution

The fourth proportional to 1,306,972.80, 1,960,556.40 and 465,415.20 is: 698,157.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,972.80 : 1,960,556.40 = 465,415.20 : x
  2. Step 2: Convert to fraction form
    1,306,972.80/1,960,556.40 = 465,415.20/x
  3. Step 3: Cross multiply
    1,306,972.80x = 1,960,556.40 × 465,415.20
  4. Step 4: Simplify right side
    1,306,972.80x = 912,472,749,017.28
  5. Step 5: Solve for x
    x = 912,472,749,017.28/1,306,972.80
  6. Step 6: Final answer
    x = 698,157.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.