Home / 1,143,623.90-1,715,074.49-385,288.65

Finding the Fourth Proportional to 1,143,623.90, 1,715,074.49 and 385,288.65

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Solution

The fourth proportional to 1,143,623.90, 1,715,074.49 and 385,288.65 is: 577,811.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,623.90 : 1,715,074.49 = 385,288.65 : x
  2. Step 2: Convert to fraction form
    1,143,623.90/1,715,074.49 = 385,288.65/x
  3. Step 3: Cross multiply
    1,143,623.90x = 1,715,074.49 × 385,288.65
  4. Step 4: Simplify right side
    1,143,623.90x = 660,798,735,864.76
  5. Step 5: Solve for x
    x = 660,798,735,864.76/1,143,623.90
  6. Step 6: Final answer
    x = 577,811.23

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Double scale
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1.5x scale

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.