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Finding the Fourth Proportional to 636,488.76, 878,360.94 and 350,010.96

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Solution

The fourth proportional to 636,488.76, 878,360.94 and 350,010.96 is: 483,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,488.76 : 878,360.94 = 350,010.96 : x
  2. Step 2: Convert to fraction form
    636,488.76/878,360.94 = 350,010.96/x
  3. Step 3: Cross multiply
    636,488.76x = 878,360.94 × 350,010.96
  4. Step 4: Simplify right side
    636,488.76x = 307,435,955,835.90
  5. Step 5: Solve for x
    x = 307,435,955,835.90/636,488.76
  6. Step 6: Final answer
    x = 483,018.67

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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.