Home / 1,942,948.80-2,912,284.80-680,126.40

Finding the Fourth Proportional to 1,942,948.80, 2,912,284.80 and 680,126.40

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Solution

The fourth proportional to 1,942,948.80, 2,912,284.80 and 680,126.40 is: 1,019,441.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,948.80 : 2,912,284.80 = 680,126.40 : x
  2. Step 2: Convert to fraction form
    1,942,948.80/2,912,284.80 = 680,126.40/x
  3. Step 3: Cross multiply
    1,942,948.80x = 2,912,284.80 × 680,126.40
  4. Step 4: Simplify right side
    1,942,948.80x = 1,980,721,776,798.72
  5. Step 5: Solve for x
    x = 1,980,721,776,798.72/1,942,948.80
  6. Step 6: Final answer
    x = 1,019,441.06

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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.