Home / 985,971.58-1,479,120.78-346,109.26

Finding the Fourth Proportional to 985,971.58, 1,479,120.78 and 346,109.26

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Solution

The fourth proportional to 985,971.58, 1,479,120.78 and 346,109.26 is: 519,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,971.58 : 1,479,120.78 = 346,109.26 : x
  2. Step 2: Convert to fraction form
    985,971.58/1,479,120.78 = 346,109.26/x
  3. Step 3: Cross multiply
    985,971.58x = 1,479,120.78 × 346,109.26
  4. Step 4: Simplify right side
    985,971.58x = 511,937,398,616.42
  5. Step 5: Solve for x
    x = 511,937,398,616.42/985,971.58
  6. Step 6: Final answer
    x = 519,221.25

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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.