Home / 899,142.65-1,240,817.90-491,251.35

Finding the Fourth Proportional to 899,142.65, 1,240,817.90 and 491,251.35

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Solution

The fourth proportional to 899,142.65, 1,240,817.90 and 491,251.35 is: 677,927.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,142.65 : 1,240,817.90 = 491,251.35 : x
  2. Step 2: Convert to fraction form
    899,142.65/1,240,817.90 = 491,251.35/x
  3. Step 3: Cross multiply
    899,142.65x = 1,240,817.90 × 491,251.35
  4. Step 4: Simplify right side
    899,142.65x = 609,553,468,479.17
  5. Step 5: Solve for x
    x = 609,553,468,479.17/899,142.65
  6. Step 6: Final answer
    x = 677,927.43

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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.