Home / 486,980.10-672,019.64-272,121.93

Finding the Fourth Proportional to 486,980.10, 672,019.64 and 272,121.93

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Solution

The fourth proportional to 486,980.10, 672,019.64 and 272,121.93 is: 375,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,980.10 : 672,019.64 = 272,121.93 : x
  2. Step 2: Convert to fraction form
    486,980.10/672,019.64 = 272,121.93/x
  3. Step 3: Cross multiply
    486,980.10x = 672,019.64 × 272,121.93
  4. Step 4: Simplify right side
    486,980.10x = 182,871,281,094.55
  5. Step 5: Solve for x
    x = 182,871,281,094.55/486,980.10
  6. Step 6: Final answer
    x = 375,521.06

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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.