Home / 628,614.72-867,506.70-342,153.36

Finding the Fourth Proportional to 628,614.72, 867,506.70 and 342,153.36

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Solution

The fourth proportional to 628,614.72, 867,506.70 and 342,153.36 is: 472,181.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,614.72 : 867,506.70 = 342,153.36 : x
  2. Step 2: Convert to fraction form
    628,614.72/867,506.70 = 342,153.36/x
  3. Step 3: Cross multiply
    628,614.72x = 867,506.70 × 342,153.36
  4. Step 4: Simplify right side
    628,614.72x = 296,820,332,227.51
  5. Step 5: Solve for x
    x = 296,820,332,227.51/628,614.72
  6. Step 6: Final answer
    x = 472,181.64

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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.