Home / 689,435.42-1,034,160.43-209,741.35

Finding the Fourth Proportional to 689,435.42, 1,034,160.43 and 209,741.35

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Solution

The fourth proportional to 689,435.42, 1,034,160.43 and 209,741.35 is: 314,614.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,435.42 : 1,034,160.43 = 209,741.35 : x
  2. Step 2: Convert to fraction form
    689,435.42/1,034,160.43 = 209,741.35/x
  3. Step 3: Cross multiply
    689,435.42x = 1,034,160.43 × 209,741.35
  4. Step 4: Simplify right side
    689,435.42x = 216,906,203,042.51
  5. Step 5: Solve for x
    x = 216,906,203,042.51/689,435.42
  6. Step 6: Final answer
    x = 314,614.24

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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.