Home / 877,776.08-1,316,709.66-278,784.12

Finding the Fourth Proportional to 877,776.08, 1,316,709.66 and 278,784.12

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Solution

The fourth proportional to 877,776.08, 1,316,709.66 and 278,784.12 is: 418,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,776.08 : 1,316,709.66 = 278,784.12 : x
  2. Step 2: Convert to fraction form
    877,776.08/1,316,709.66 = 278,784.12/x
  3. Step 3: Cross multiply
    877,776.08x = 1,316,709.66 × 278,784.12
  4. Step 4: Simplify right side
    877,776.08x = 367,077,743,858.60
  5. Step 5: Solve for x
    x = 367,077,743,858.60/877,776.08
  6. Step 6: Final answer
    x = 418,190.64

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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.