Home / 877,201.80-1,316,109.90-378,923.40

Finding the Fourth Proportional to 877,201.80, 1,316,109.90 and 378,923.40

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Solution

The fourth proportional to 877,201.80, 1,316,109.90 and 378,923.40 is: 568,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,201.80 : 1,316,109.90 = 378,923.40 : x
  2. Step 2: Convert to fraction form
    877,201.80/1,316,109.90 = 378,923.40/x
  3. Step 3: Cross multiply
    877,201.80x = 1,316,109.90 × 378,923.40
  4. Step 4: Simplify right side
    877,201.80x = 498,704,838,081.66
  5. Step 5: Solve for x
    x = 498,704,838,081.66/877,201.80
  6. Step 6: Final answer
    x = 568,517.80

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1.5x scale

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.