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Finding the Fourth Proportional to 636,852.19, 878,855.99 and 350,366.13

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Solution

The fourth proportional to 636,852.19, 878,855.99 and 350,366.13 is: 483,505.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,852.19 : 878,855.99 = 350,366.13 : x
  2. Step 2: Convert to fraction form
    636,852.19/878,855.99 = 350,366.13/x
  3. Step 3: Cross multiply
    636,852.19x = 878,855.99 × 350,366.13
  4. Step 4: Simplify right side
    636,852.19x = 307,921,372,043.62
  5. Step 5: Solve for x
    x = 307,921,372,043.62/636,852.19
  6. Step 6: Final answer
    x = 483,505.24

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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.