Home / 1,354,926.20-1,869,663.48-782,150.90

Finding the Fourth Proportional to 1,354,926.20, 1,869,663.48 and 782,150.90

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Solution

The fourth proportional to 1,354,926.20, 1,869,663.48 and 782,150.90 is: 1,079,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,926.20 : 1,869,663.48 = 782,150.90 : x
  2. Step 2: Convert to fraction form
    1,354,926.20/1,869,663.48 = 782,150.90/x
  3. Step 3: Cross multiply
    1,354,926.20x = 1,869,663.48 × 782,150.90
  4. Step 4: Simplify right side
    1,354,926.20x = 1,462,358,973,579.13
  5. Step 5: Solve for x
    x = 1,462,358,973,579.13/1,354,926.20
  6. Step 6: Final answer
    x = 1,079,290.50

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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.