Home / 877,018.84-1,315,411.38-278,040.54

Finding the Fourth Proportional to 877,018.84, 1,315,411.38 and 278,040.54

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Solution

The fourth proportional to 877,018.84, 1,315,411.38 and 278,040.54 is: 417,023.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,018.84 : 1,315,411.38 = 278,040.54 : x
  2. Step 2: Convert to fraction form
    877,018.84/1,315,411.38 = 278,040.54/x
  3. Step 3: Cross multiply
    877,018.84x = 1,315,411.38 × 278,040.54
  4. Step 4: Simplify right side
    877,018.84x = 365,737,695,350.14
  5. Step 5: Solve for x
    x = 365,737,695,350.14/877,018.84
  6. Step 6: Final answer
    x = 417,023.76

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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.