Home / 761,801.40-1,142,993.70-749,845.80

Finding the Fourth Proportional to 761,801.40, 1,142,993.70 and 749,845.80

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Solution

The fourth proportional to 761,801.40, 1,142,993.70 and 749,845.80 is: 1,125,055.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,801.40 : 1,142,993.70 = 749,845.80 : x
  2. Step 2: Convert to fraction form
    761,801.40/1,142,993.70 = 749,845.80/x
  3. Step 3: Cross multiply
    761,801.40x = 1,142,993.70 × 749,845.80
  4. Step 4: Simplify right side
    761,801.40x = 857,069,025,371.46
  5. Step 5: Solve for x
    x = 857,069,025,371.46/761,801.40
  6. Step 6: Final answer
    x = 1,125,055.72

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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.