Home / 877,140.34-1,315,757.16-278,148.76

Finding the Fourth Proportional to 877,140.34, 1,315,757.16 and 278,148.76

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Solution

The fourth proportional to 877,140.34, 1,315,757.16 and 278,148.76 is: 417,237.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,140.34 : 1,315,757.16 = 278,148.76 : x
  2. Step 2: Convert to fraction form
    877,140.34/1,315,757.16 = 278,148.76/x
  3. Step 3: Cross multiply
    877,140.34x = 1,315,757.16 × 278,148.76
  4. Step 4: Simplify right side
    877,140.34x = 365,976,222,515.12
  5. Step 5: Solve for x
    x = 365,976,222,515.12/877,140.34
  6. Step 6: Final answer
    x = 417,237.93

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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.