Home / 486,889.40-671,840.58-272,002.76

Finding the Fourth Proportional to 486,889.40, 671,840.58 and 272,002.76

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Solution

The fourth proportional to 486,889.40, 671,840.58 and 272,002.76 is: 375,326.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,889.40 : 671,840.58 = 272,002.76 : x
  2. Step 2: Convert to fraction form
    486,889.40/671,840.58 = 272,002.76/x
  3. Step 3: Cross multiply
    486,889.40x = 671,840.58 × 272,002.76
  4. Step 4: Simplify right side
    486,889.40x = 182,742,492,040.00
  5. Step 5: Solve for x
    x = 182,742,492,040.00/486,889.40
  6. Step 6: Final answer
    x = 375,326.50

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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.