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Finding the Fourth Proportional to 636,670.83, 878,587.22 and 350,190.84

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Solution

The fourth proportional to 636,670.83, 878,587.22 and 350,190.84 is: 483,253.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,670.83 : 878,587.22 = 350,190.84 : x
  2. Step 2: Convert to fraction form
    636,670.83/878,587.22 = 350,190.84/x
  3. Step 3: Cross multiply
    636,670.83x = 878,587.22 × 350,190.84
  4. Step 4: Simplify right side
    636,670.83x = 307,673,196,585.07
  5. Step 5: Solve for x
    x = 307,673,196,585.07/636,670.83
  6. Step 6: Final answer
    x = 483,253.17

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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.