Home / 1,316,794.80-1,974,009.60-518,620.80

Finding the Fourth Proportional to 1,316,794.80, 1,974,009.60 and 518,620.80

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Solution

The fourth proportional to 1,316,794.80, 1,974,009.60 and 518,620.80 is: 777,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,794.80 : 1,974,009.60 = 518,620.80 : x
  2. Step 2: Convert to fraction form
    1,316,794.80/1,974,009.60 = 518,620.80/x
  3. Step 3: Cross multiply
    1,316,794.80x = 1,974,009.60 × 518,620.80
  4. Step 4: Simplify right side
    1,316,794.80x = 1,023,762,437,959.68
  5. Step 5: Solve for x
    x = 1,023,762,437,959.68/1,316,794.80
  6. Step 6: Final answer
    x = 777,465.43

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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.