Home / 877,986.36-1,316,842.25-278,868.65

Finding the Fourth Proportional to 877,986.36, 1,316,842.25 and 278,868.65

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Solution

The fourth proportional to 877,986.36, 1,316,842.25 and 278,868.65 is: 418,259.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,986.36 : 1,316,842.25 = 278,868.65 : x
  2. Step 2: Convert to fraction form
    877,986.36/1,316,842.25 = 278,868.65/x
  3. Step 3: Cross multiply
    877,986.36x = 1,316,842.25 × 278,868.65
  4. Step 4: Simplify right side
    877,986.36x = 367,226,012,541.91
  5. Step 5: Solve for x
    x = 367,226,012,541.91/877,986.36
  6. Step 6: Final answer
    x = 418,259.36

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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.