Home / 856,377.36-1,284,595.20-406,866.24

Finding the Fourth Proportional to 856,377.36, 1,284,595.20 and 406,866.24

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Solution

The fourth proportional to 856,377.36, 1,284,595.20 and 406,866.24 is: 610,313.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,377.36 : 1,284,595.20 = 406,866.24 : x
  2. Step 2: Convert to fraction form
    856,377.36/1,284,595.20 = 406,866.24/x
  3. Step 3: Cross multiply
    856,377.36x = 1,284,595.20 × 406,866.24
  4. Step 4: Simplify right side
    856,377.36x = 522,658,418,946.05
  5. Step 5: Solve for x
    x = 522,658,418,946.05/856,377.36
  6. Step 6: Final answer
    x = 610,313.21

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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.