Home / 761,775.40-1,142,954.70-749,819.80

Finding the Fourth Proportional to 761,775.40, 1,142,954.70 and 749,819.80

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Solution

The fourth proportional to 761,775.40, 1,142,954.70 and 749,819.80 is: 1,125,016.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,775.40 : 1,142,954.70 = 749,819.80 : x
  2. Step 2: Convert to fraction form
    761,775.40/1,142,954.70 = 749,819.80/x
  3. Step 3: Cross multiply
    761,775.40x = 1,142,954.70 × 749,819.80
  4. Step 4: Simplify right side
    761,775.40x = 857,010,064,563.06
  5. Step 5: Solve for x
    x = 857,010,064,563.06/761,775.40
  6. Step 6: Final answer
    x = 1,125,016.72

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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.