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Finding the Fourth Proportional to 880,008.12, 1,214,411.71 and 477,600.12

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Solution

The fourth proportional to 880,008.12, 1,214,411.71 and 477,600.12 is: 659,088.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,008.12 : 1,214,411.71 = 477,600.12 : x
  2. Step 2: Convert to fraction form
    880,008.12/1,214,411.71 = 477,600.12/x
  3. Step 3: Cross multiply
    880,008.12x = 1,214,411.71 × 477,600.12
  4. Step 4: Simplify right side
    880,008.12x = 580,003,178,425.41
  5. Step 5: Solve for x
    x = 580,003,178,425.41/880,008.12
  6. Step 6: Final answer
    x = 659,088.44

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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.