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Finding the Fourth Proportional to 688,695.25, 950,222.94 and 402,050.62

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Solution

The fourth proportional to 688,695.25, 950,222.94 and 402,050.62 is: 554,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,695.25 : 950,222.94 = 402,050.62 : x
  2. Step 2: Convert to fraction form
    688,695.25/950,222.94 = 402,050.62/x
  3. Step 3: Cross multiply
    688,695.25x = 950,222.94 × 402,050.62
  4. Step 4: Simplify right side
    688,695.25x = 382,037,722,165.22
  5. Step 5: Solve for x
    x = 382,037,722,165.22/688,695.25
  6. Step 6: Final answer
    x = 554,726.81

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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.