Home / 1,282,144.80-1,768,803.84-772,557.60

Finding the Fourth Proportional to 1,282,144.80, 1,768,803.84 and 772,557.60

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Solution

The fourth proportional to 1,282,144.80, 1,768,803.84 and 772,557.60 is: 1,065,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,144.80 : 1,768,803.84 = 772,557.60 : x
  2. Step 2: Convert to fraction form
    1,282,144.80/1,768,803.84 = 772,557.60/x
  3. Step 3: Cross multiply
    1,282,144.80x = 1,768,803.84 × 772,557.60
  4. Step 4: Simplify right side
    1,282,144.80x = 1,366,502,849,501.18
  5. Step 5: Solve for x
    x = 1,366,502,849,501.18/1,282,144.80
  6. Step 6: Final answer
    x = 1,065,794.48

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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.