Home / 486,853.96-671,872.16-272,017.68

Finding the Fourth Proportional to 486,853.96, 671,872.16 and 272,017.68

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Solution

The fourth proportional to 486,853.96, 671,872.16 and 272,017.68 is: 375,392.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,853.96 : 671,872.16 = 272,017.68 : x
  2. Step 2: Convert to fraction form
    486,853.96/671,872.16 = 272,017.68/x
  3. Step 3: Cross multiply
    486,853.96x = 671,872.16 × 272,017.68
  4. Step 4: Simplify right side
    486,853.96x = 182,761,106,219.79
  5. Step 5: Solve for x
    x = 182,761,106,219.79/486,853.96
  6. Step 6: Final answer
    x = 375,392.05

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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.