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Finding the Fourth Proportional to 348,521.80, 522,782.70 and 345,897.40

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Solution

The fourth proportional to 348,521.80, 522,782.70 and 345,897.40 is: 518,846.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,521.80 : 522,782.70 = 345,897.40 : x
  2. Step 2: Convert to fraction form
    348,521.80/522,782.70 = 345,897.40/x
  3. Step 3: Cross multiply
    348,521.80x = 522,782.70 × 345,897.40
  4. Step 4: Simplify right side
    348,521.80x = 180,829,176,694.98
  5. Step 5: Solve for x
    x = 180,829,176,694.98/348,521.80
  6. Step 6: Final answer
    x = 518,846.10

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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.