Home / 877,100.87-1,316,176.19-378,464.87

Finding the Fourth Proportional to 877,100.87, 1,316,176.19 and 378,464.87

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Solution

The fourth proportional to 877,100.87, 1,316,176.19 and 378,464.87 is: 567,923.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,100.87 : 1,316,176.19 = 378,464.87 : x
  2. Step 2: Convert to fraction form
    877,100.87/1,316,176.19 = 378,464.87/x
  3. Step 3: Cross multiply
    877,100.87x = 1,316,176.19 × 378,464.87
  4. Step 4: Simplify right side
    877,100.87x = 498,126,453,462.81
  5. Step 5: Solve for x
    x = 498,126,453,462.81/877,100.87
  6. Step 6: Final answer
    x = 567,923.79

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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.