Home / 728,419.80-1,092,629.70-476,477.40

Finding the Fourth Proportional to 728,419.80, 1,092,629.70 and 476,477.40

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Solution

The fourth proportional to 728,419.80, 1,092,629.70 and 476,477.40 is: 714,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,419.80 : 1,092,629.70 = 476,477.40 : x
  2. Step 2: Convert to fraction form
    728,419.80/1,092,629.70 = 476,477.40/x
  3. Step 3: Cross multiply
    728,419.80x = 1,092,629.70 × 476,477.40
  4. Step 4: Simplify right side
    728,419.80x = 520,613,358,618.78
  5. Step 5: Solve for x
    x = 520,613,358,618.78/728,419.80
  6. Step 6: Final answer
    x = 714,716.10

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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.