Home / 819,860.90-1,131,409.59-457,308.24

Finding the Fourth Proportional to 819,860.90, 1,131,409.59 and 457,308.24

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Solution

The fourth proportional to 819,860.90, 1,131,409.59 and 457,308.24 is: 631,086.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,860.90 : 1,131,409.59 = 457,308.24 : x
  2. Step 2: Convert to fraction form
    819,860.90/1,131,409.59 = 457,308.24/x
  3. Step 3: Cross multiply
    819,860.90x = 1,131,409.59 × 457,308.24
  4. Step 4: Simplify right side
    819,860.90x = 517,402,928,322.02
  5. Step 5: Solve for x
    x = 517,402,928,322.02/819,860.90
  6. Step 6: Final answer
    x = 631,086.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.