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Finding the Fourth Proportional to 606,426.15, 909,511.65 and 306,624.90

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Solution

The fourth proportional to 606,426.15, 909,511.65 and 306,624.90 is: 459,872.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,426.15 : 909,511.65 = 306,624.90 : x
  2. Step 2: Convert to fraction form
    606,426.15/909,511.65 = 306,624.90/x
  3. Step 3: Cross multiply
    606,426.15x = 909,511.65 × 306,624.90
  4. Step 4: Simplify right side
    606,426.15x = 278,878,918,730.09
  5. Step 5: Solve for x
    x = 278,878,918,730.09/606,426.15
  6. Step 6: Final answer
    x = 459,872.84

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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.