Home / 929,815.40-1,282,983.10-521,934.44

Finding the Fourth Proportional to 929,815.40, 1,282,983.10 and 521,934.44

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Solution

The fourth proportional to 929,815.40, 1,282,983.10 and 521,934.44 is: 720,178.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,815.40 : 1,282,983.10 = 521,934.44 : x
  2. Step 2: Convert to fraction form
    929,815.40/1,282,983.10 = 521,934.44/x
  3. Step 3: Cross multiply
    929,815.40x = 1,282,983.10 × 521,934.44
  4. Step 4: Simplify right side
    929,815.40x = 669,633,058,108.21
  5. Step 5: Solve for x
    x = 669,633,058,108.21/929,815.40
  6. Step 6: Final answer
    x = 720,178.50

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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.