Home / 1,318,993.68-1,820,045.80-782,346

Finding the Fourth Proportional to 1,318,993.68, 1,820,045.80 and 782,346

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Solution

The fourth proportional to 1,318,993.68, 1,820,045.80 and 782,346 is: 1,079,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,993.68 : 1,820,045.80 = 782,346 : x
  2. Step 2: Convert to fraction form
    1,318,993.68/1,820,045.80 = 782,346/x
  3. Step 3: Cross multiply
    1,318,993.68x = 1,820,045.80 × 782,346
  4. Step 4: Simplify right side
    1,318,993.68x = 1,423,905,551,446.80
  5. Step 5: Solve for x
    x = 1,423,905,551,446.80/1,318,993.68
  6. Step 6: Final answer
    x = 1,079,539.33

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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.