Home / 877,777.08-1,316,711.16-278,785.12

Finding the Fourth Proportional to 877,777.08, 1,316,711.16 and 278,785.12

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Solution

The fourth proportional to 877,777.08, 1,316,711.16 and 278,785.12 is: 418,192.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,777.08 : 1,316,711.16 = 278,785.12 : x
  2. Step 2: Convert to fraction form
    877,777.08/1,316,711.16 = 278,785.12/x
  3. Step 3: Cross multiply
    877,777.08x = 1,316,711.16 × 278,785.12
  4. Step 4: Simplify right side
    877,777.08x = 367,079,478,745.94
  5. Step 5: Solve for x
    x = 367,079,478,745.94/877,777.08
  6. Step 6: Final answer
    x = 418,192.14

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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.