Home / 646,945.09-892,787.88-375,174.35

Finding the Fourth Proportional to 646,945.09, 892,787.88 and 375,174.35

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Solution

The fourth proportional to 646,945.09, 892,787.88 and 375,174.35 is: 517,742.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,945.09 : 892,787.88 = 375,174.35 : x
  2. Step 2: Convert to fraction form
    646,945.09/892,787.88 = 375,174.35/x
  3. Step 3: Cross multiply
    646,945.09x = 892,787.88 × 375,174.35
  4. Step 4: Simplify right side
    646,945.09x = 334,951,112,566.88
  5. Step 5: Solve for x
    x = 334,951,112,566.88/646,945.09
  6. Step 6: Final answer
    x = 517,742.72

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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.