Home / 639,011.10-881,838.30-352,531.11

Finding the Fourth Proportional to 639,011.10, 881,838.30 and 352,531.11

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Solution

The fourth proportional to 639,011.10, 881,838.30 and 352,531.11 is: 486,494.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,011.10 : 881,838.30 = 352,531.11 : x
  2. Step 2: Convert to fraction form
    639,011.10/881,838.30 = 352,531.11/x
  3. Step 3: Cross multiply
    639,011.10x = 881,838.30 × 352,531.11
  4. Step 4: Simplify right side
    639,011.10x = 310,875,434,739.51
  5. Step 5: Solve for x
    x = 310,875,434,739.51/639,011.10
  6. Step 6: Final answer
    x = 486,494.58

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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.