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Finding the Fourth Proportional to 515,550.10, 774,017.70 and 302,536.30

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Solution

The fourth proportional to 515,550.10, 774,017.70 and 302,536.30 is: 454,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,550.10 : 774,017.70 = 302,536.30 : x
  2. Step 2: Convert to fraction form
    515,550.10/774,017.70 = 302,536.30/x
  3. Step 3: Cross multiply
    515,550.10x = 774,017.70 × 302,536.30
  4. Step 4: Simplify right side
    515,550.10x = 234,168,451,092.51
  5. Step 5: Solve for x
    x = 234,168,451,092.51/515,550.10
  6. Step 6: Final answer
    x = 454,210.85

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1.5x scale

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.