Home / 899,145.24-1,240,906.20-491,309.08

Finding the Fourth Proportional to 899,145.24, 1,240,906.20 and 491,309.08

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Solution

The fourth proportional to 899,145.24, 1,240,906.20 and 491,309.08 is: 678,053.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,145.24 : 1,240,906.20 = 491,309.08 : x
  2. Step 2: Convert to fraction form
    899,145.24/1,240,906.20 = 491,309.08/x
  3. Step 3: Cross multiply
    899,145.24x = 1,240,906.20 × 491,309.08
  4. Step 4: Simplify right side
    899,145.24x = 609,668,483,488.30
  5. Step 5: Solve for x
    x = 609,668,483,488.30/899,145.24
  6. Step 6: Final answer
    x = 678,053.40

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Double scale
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1.5x scale

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.