Home / 1,375,742.40-1,898,524.46-772,130.40

Finding the Fourth Proportional to 1,375,742.40, 1,898,524.46 and 772,130.40

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Solution

The fourth proportional to 1,375,742.40, 1,898,524.46 and 772,130.40 is: 1,065,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,742.40 : 1,898,524.46 = 772,130.40 : x
  2. Step 2: Convert to fraction form
    1,375,742.40/1,898,524.46 = 772,130.40/x
  3. Step 3: Cross multiply
    1,375,742.40x = 1,898,524.46 × 772,130.40
  4. Step 4: Simplify right side
    1,375,742.40x = 1,465,908,450,709.58
  5. Step 5: Solve for x
    x = 1,465,908,450,709.58/1,375,742.40
  6. Step 6: Final answer
    x = 1,065,539.92

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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.