Home / 761,719.38-1,142,739.27-288,394.26

Finding the Fourth Proportional to 761,719.38, 1,142,739.27 and 288,394.26

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Solution

The fourth proportional to 761,719.38, 1,142,739.27 and 288,394.26 is: 432,652.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,719.38 : 1,142,739.27 = 288,394.26 : x
  2. Step 2: Convert to fraction form
    761,719.38/1,142,739.27 = 288,394.26/x
  3. Step 3: Cross multiply
    761,719.38x = 1,142,739.27 × 288,394.26
  4. Step 4: Simplify right side
    761,719.38x = 329,559,446,144.59
  5. Step 5: Solve for x
    x = 329,559,446,144.59/761,719.38
  6. Step 6: Final answer
    x = 432,652.04

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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.