Home / 1,528,073.80-2,290,436.70-768,704.20

Finding the Fourth Proportional to 1,528,073.80, 2,290,436.70 and 768,704.20

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Solution

The fourth proportional to 1,528,073.80, 2,290,436.70 and 768,704.20 is: 1,152,214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,073.80 : 2,290,436.70 = 768,704.20 : x
  2. Step 2: Convert to fraction form
    1,528,073.80/2,290,436.70 = 768,704.20/x
  3. Step 3: Cross multiply
    1,528,073.80x = 2,290,436.70 × 768,704.20
  4. Step 4: Simplify right side
    1,528,073.80x = 1,760,668,311,124.14
  5. Step 5: Solve for x
    x = 1,760,668,311,124.14/1,528,073.80
  6. Step 6: Final answer
    x = 1,152,214.19

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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.