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Finding the Fourth Proportional to 885,492.30, 1,328,022.45 and 254,340.30

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Solution

The fourth proportional to 885,492.30, 1,328,022.45 and 254,340.30 is: 381,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,492.30 : 1,328,022.45 = 254,340.30 : x
  2. Step 2: Convert to fraction form
    885,492.30/1,328,022.45 = 254,340.30/x
  3. Step 3: Cross multiply
    885,492.30x = 1,328,022.45 × 254,340.30
  4. Step 4: Simplify right side
    885,492.30x = 337,769,628,339.74
  5. Step 5: Solve for x
    x = 337,769,628,339.74/885,492.30
  6. Step 6: Final answer
    x = 381,448.41

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Double scale
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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.