Home / 761,306.50-1,142,103.78-305,933.19

Finding the Fourth Proportional to 761,306.50, 1,142,103.78 and 305,933.19

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Solution

The fourth proportional to 761,306.50, 1,142,103.78 and 305,933.19 is: 458,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,306.50 : 1,142,103.78 = 305,933.19 : x
  2. Step 2: Convert to fraction form
    761,306.50/1,142,103.78 = 305,933.19/x
  3. Step 3: Cross multiply
    761,306.50x = 1,142,103.78 × 305,933.19
  4. Step 4: Simplify right side
    761,306.50x = 349,407,448,443.57
  5. Step 5: Solve for x
    x = 349,407,448,443.57/761,306.50
  6. Step 6: Final answer
    x = 458,957.66

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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.