Home / 899,159.46-1,240,803.36-491,275.44

Finding the Fourth Proportional to 899,159.46, 1,240,803.36 and 491,275.44

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Solution

The fourth proportional to 899,159.46, 1,240,803.36 and 491,275.44 is: 677,940.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,159.46 : 1,240,803.36 = 491,275.44 : x
  2. Step 2: Convert to fraction form
    899,159.46/1,240,803.36 = 491,275.44/x
  3. Step 3: Cross multiply
    899,159.46x = 1,240,803.36 × 491,275.44
  4. Step 4: Simplify right side
    899,159.46x = 609,576,216,637.48
  5. Step 5: Solve for x
    x = 609,576,216,637.48/899,159.46
  6. Step 6: Final answer
    x = 677,940.06

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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.