Home / 1,431,855.60-1,975,922.82-778,461

Finding the Fourth Proportional to 1,431,855.60, 1,975,922.82 and 778,461

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Solution

The fourth proportional to 1,431,855.60, 1,975,922.82 and 778,461 is: 1,074,255.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,855.60 : 1,975,922.82 = 778,461 : x
  2. Step 2: Convert to fraction form
    1,431,855.60/1,975,922.82 = 778,461/x
  3. Step 3: Cross multiply
    1,431,855.60x = 1,975,922.82 × 778,461
  4. Step 4: Simplify right side
    1,431,855.60x = 1,538,178,854,380.02
  5. Step 5: Solve for x
    x = 1,538,178,854,380.02/1,431,855.60
  6. Step 6: Final answer
    x = 1,074,255.57

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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.