Home / 646,639.01-892,204.45-425,853.51

Finding the Fourth Proportional to 646,639.01, 892,204.45 and 425,853.51

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Solution

The fourth proportional to 646,639.01, 892,204.45 and 425,853.51 is: 587,574.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,639.01 : 892,204.45 = 425,853.51 : x
  2. Step 2: Convert to fraction form
    646,639.01/892,204.45 = 425,853.51/x
  3. Step 3: Cross multiply
    646,639.01x = 892,204.45 × 425,853.51
  4. Step 4: Simplify right side
    646,639.01x = 379,948,396,670.12
  5. Step 5: Solve for x
    x = 379,948,396,670.12/646,639.01
  6. Step 6: Final answer
    x = 587,574.20

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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.