Home / 390,142.45-585,331.63-276,510.02

Finding the Fourth Proportional to 390,142.45, 585,331.63 and 276,510.02

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Solution

The fourth proportional to 390,142.45, 585,331.63 and 276,510.02 is: 414,848.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,142.45 : 585,331.63 = 276,510.02 : x
  2. Step 2: Convert to fraction form
    390,142.45/585,331.63 = 276,510.02/x
  3. Step 3: Cross multiply
    390,142.45x = 585,331.63 × 276,510.02
  4. Step 4: Simplify right side
    390,142.45x = 161,850,060,717.93
  5. Step 5: Solve for x
    x = 161,850,060,717.93/390,142.45
  6. Step 6: Final answer
    x = 414,848.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.