Home / 761,970.18-1,051,520.31-422,438.43

Finding the Fourth Proportional to 761,970.18, 1,051,520.31 and 422,438.43

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Solution

The fourth proportional to 761,970.18, 1,051,520.31 and 422,438.43 is: 582,965.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,970.18 : 1,051,520.31 = 422,438.43 : x
  2. Step 2: Convert to fraction form
    761,970.18/1,051,520.31 = 422,438.43/x
  3. Step 3: Cross multiply
    761,970.18x = 1,051,520.31 × 422,438.43
  4. Step 4: Simplify right side
    761,970.18x = 444,202,588,869.51
  5. Step 5: Solve for x
    x = 444,202,588,869.51/761,970.18
  6. Step 6: Final answer
    x = 582,965.84

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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.