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Finding the Fourth Proportional to 688,983.48, 950,850.45 and 413,351.65

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Solution

The fourth proportional to 688,983.48, 950,850.45 and 413,351.65 is: 570,457.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,983.48 : 950,850.45 = 413,351.65 : x
  2. Step 2: Convert to fraction form
    688,983.48/950,850.45 = 413,351.65/x
  3. Step 3: Cross multiply
    688,983.48x = 950,850.45 × 413,351.65
  4. Step 4: Simplify right side
    688,983.48x = 393,035,602,410.74
  5. Step 5: Solve for x
    x = 393,035,602,410.74/688,983.48
  6. Step 6: Final answer
    x = 570,457.22

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Double scale
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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.