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Finding the Fourth Proportional to 547,222.40, 819,521.40 and 442,246.40

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Solution

The fourth proportional to 547,222.40, 819,521.40 and 442,246.40 is: 662,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,222.40 : 819,521.40 = 442,246.40 : x
  2. Step 2: Convert to fraction form
    547,222.40/819,521.40 = 442,246.40/x
  3. Step 3: Cross multiply
    547,222.40x = 819,521.40 × 442,246.40
  4. Step 4: Simplify right side
    547,222.40x = 362,430,388,872.96
  5. Step 5: Solve for x
    x = 362,430,388,872.96/547,222.40
  6. Step 6: Final answer
    x = 662,309.12

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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.