Home / 877,243.01-1,315,911.50-278,249.63

Finding the Fourth Proportional to 877,243.01, 1,315,911.50 and 278,249.63

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Solution

The fourth proportional to 877,243.01, 1,315,911.50 and 278,249.63 is: 417,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,243.01 : 1,315,911.50 = 278,249.63 : x
  2. Step 2: Convert to fraction form
    877,243.01/1,315,911.50 = 278,249.63/x
  3. Step 3: Cross multiply
    877,243.01x = 1,315,911.50 × 278,249.63
  4. Step 4: Simplify right side
    877,243.01x = 366,151,887,987.75
  5. Step 5: Solve for x
    x = 366,151,887,987.75/877,243.01
  6. Step 6: Final answer
    x = 417,389.35

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1.5x scale

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.