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Finding the Fourth Proportional to 636,903.91, 878,191.07 and 507,741.44

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Solution

The fourth proportional to 636,903.91, 878,191.07 and 507,741.44 is: 700,096.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,903.91 : 878,191.07 = 507,741.44 : x
  2. Step 2: Convert to fraction form
    636,903.91/878,191.07 = 507,741.44/x
  3. Step 3: Cross multiply
    636,903.91x = 878,191.07 × 507,741.44
  4. Step 4: Simplify right side
    636,903.91x = 445,893,994,017.19
  5. Step 5: Solve for x
    x = 445,893,994,017.19/636,903.91
  6. Step 6: Final answer
    x = 700,096.18

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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.