Home / 638,921.52-881,714.16-352,437.48

Finding the Fourth Proportional to 638,921.52, 881,714.16 and 352,437.48

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Solution

The fourth proportional to 638,921.52, 881,714.16 and 352,437.48 is: 486,365.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,921.52 : 881,714.16 = 352,437.48 : x
  2. Step 2: Convert to fraction form
    638,921.52/881,714.16 = 352,437.48/x
  3. Step 3: Cross multiply
    638,921.52x = 881,714.16 × 352,437.48
  4. Step 4: Simplify right side
    638,921.52x = 310,749,116,630.72
  5. Step 5: Solve for x
    x = 310,749,116,630.72/638,921.52
  6. Step 6: Final answer
    x = 486,365.08

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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.