Home / 810,746.55-1,216,144.53-278,259.84

Finding the Fourth Proportional to 810,746.55, 1,216,144.53 and 278,259.84

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Solution

The fourth proportional to 810,746.55, 1,216,144.53 and 278,259.84 is: 417,398.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,746.55 : 1,216,144.53 = 278,259.84 : x
  2. Step 2: Convert to fraction form
    810,746.55/1,216,144.53 = 278,259.84/x
  3. Step 3: Cross multiply
    810,746.55x = 1,216,144.53 × 278,259.84
  4. Step 4: Simplify right side
    810,746.55x = 338,404,182,334.68
  5. Step 5: Solve for x
    x = 338,404,182,334.68/810,746.55
  6. Step 6: Final answer
    x = 417,398.24

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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.