Home / 1,316,808.80-1,974,030.60-518,634.80

Finding the Fourth Proportional to 1,316,808.80, 1,974,030.60 and 518,634.80

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Solution

The fourth proportional to 1,316,808.80, 1,974,030.60 and 518,634.80 is: 777,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,808.80 : 1,974,030.60 = 518,634.80 : x
  2. Step 2: Convert to fraction form
    1,316,808.80/1,974,030.60 = 518,634.80/x
  3. Step 3: Cross multiply
    1,316,808.80x = 1,974,030.60 × 518,634.80
  4. Step 4: Simplify right side
    1,316,808.80x = 1,023,800,965,424.88
  5. Step 5: Solve for x
    x = 1,023,800,965,424.88/1,316,808.80
  6. Step 6: Final answer
    x = 777,486.42

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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.