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Finding the Fourth Proportional to 555,340.60, 765,980.22 and 340,566.22

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Solution

The fourth proportional to 555,340.60, 765,980.22 and 340,566.22 is: 469,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,340.60 : 765,980.22 = 340,566.22 : x
  2. Step 2: Convert to fraction form
    555,340.60/765,980.22 = 340,566.22/x
  3. Step 3: Cross multiply
    555,340.60x = 765,980.22 × 340,566.22
  4. Step 4: Simplify right side
    555,340.60x = 260,866,988,120.17
  5. Step 5: Solve for x
    x = 260,866,988,120.17/555,340.60
  6. Step 6: Final answer
    x = 469,742.33

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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.