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Finding the Fourth Proportional to 709,827.84, 979,674.93 and 451,435.41

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Solution

The fourth proportional to 709,827.84, 979,674.93 and 451,435.41 is: 623,052.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,827.84 : 979,674.93 = 451,435.41 : x
  2. Step 2: Convert to fraction form
    709,827.84/979,674.93 = 451,435.41/x
  3. Step 3: Cross multiply
    709,827.84x = 979,674.93 × 451,435.41
  4. Step 4: Simplify right side
    709,827.84x = 442,259,953,691.27
  5. Step 5: Solve for x
    x = 442,259,953,691.27/709,827.84
  6. Step 6: Final answer
    x = 623,052.42

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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.