Home / 1,143,621.65-1,715,071.12-385,286.40

Finding the Fourth Proportional to 1,143,621.65, 1,715,071.12 and 385,286.40

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Solution

The fourth proportional to 1,143,621.65, 1,715,071.12 and 385,286.40 is: 577,807.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,621.65 : 1,715,071.12 = 385,286.40 : x
  2. Step 2: Convert to fraction form
    1,143,621.65/1,715,071.12 = 385,286.40/x
  3. Step 3: Cross multiply
    1,143,621.65x = 1,715,071.12 × 385,286.40
  4. Step 4: Simplify right side
    1,143,621.65x = 660,793,576,605.55
  5. Step 5: Solve for x
    x = 660,793,576,605.55/1,143,621.65
  6. Step 6: Final answer
    x = 577,807.86

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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.