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Finding the Fourth Proportional to 636,745.76, 955,118.66 and 436,458.96

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Solution

The fourth proportional to 636,745.76, 955,118.66 and 436,458.96 is: 654,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,745.76 : 955,118.66 = 436,458.96 : x
  2. Step 2: Convert to fraction form
    636,745.76/955,118.66 = 436,458.96/x
  3. Step 3: Cross multiply
    636,745.76x = 955,118.66 × 436,458.96
  4. Step 4: Simplify right side
    636,745.76x = 416,870,097,020.19
  5. Step 5: Solve for x
    x = 416,870,097,020.19/636,745.76
  6. Step 6: Final answer
    x = 654,688.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.