Home / 778,328.64-1,167,396.35-209,754.23

Finding the Fourth Proportional to 778,328.64, 1,167,396.35 and 209,754.23

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Solution

The fourth proportional to 778,328.64, 1,167,396.35 and 209,754.23 is: 314,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,328.64 : 1,167,396.35 = 209,754.23 : x
  2. Step 2: Convert to fraction form
    778,328.64/1,167,396.35 = 209,754.23/x
  3. Step 3: Cross multiply
    778,328.64x = 1,167,396.35 × 209,754.23
  4. Step 4: Simplify right side
    778,328.64x = 244,866,315,613.31
  5. Step 5: Solve for x
    x = 244,866,315,613.31/778,328.64
  6. Step 6: Final answer
    x = 314,605.30

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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.