Home / 761,572.70-1,051,086.12-486,049.43

Finding the Fourth Proportional to 761,572.70, 1,051,086.12 and 486,049.43

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Solution

The fourth proportional to 761,572.70, 1,051,086.12 and 486,049.43 is: 670,822.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,572.70 : 1,051,086.12 = 486,049.43 : x
  2. Step 2: Convert to fraction form
    761,572.70/1,051,086.12 = 486,049.43/x
  3. Step 3: Cross multiply
    761,572.70x = 1,051,086.12 × 486,049.43
  4. Step 4: Simplify right side
    761,572.70x = 510,879,804,399.58
  5. Step 5: Solve for x
    x = 510,879,804,399.58/761,572.70
  6. Step 6: Final answer
    x = 670,822.11

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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.