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Finding the Fourth Proportional to 508,819.41, 702,226.71 and 291,048.21

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Solution

The fourth proportional to 508,819.41, 702,226.71 and 291,048.21 is: 401,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,819.41 : 702,226.71 = 291,048.21 : x
  2. Step 2: Convert to fraction form
    508,819.41/702,226.71 = 291,048.21/x
  3. Step 3: Cross multiply
    508,819.41x = 702,226.71 × 291,048.21
  4. Step 4: Simplify right side
    508,819.41x = 204,381,826,959.69
  5. Step 5: Solve for x
    x = 204,381,826,959.69/508,819.41
  6. Step 6: Final answer
    x = 401,678.52

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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.