Home / 761,889.78-1,142,823.03-185,518.46

Finding the Fourth Proportional to 761,889.78, 1,142,823.03 and 185,518.46

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Solution

The fourth proportional to 761,889.78, 1,142,823.03 and 185,518.46 is: 278,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,889.78 : 1,142,823.03 = 185,518.46 : x
  2. Step 2: Convert to fraction form
    761,889.78/1,142,823.03 = 185,518.46/x
  3. Step 3: Cross multiply
    761,889.78x = 1,142,823.03 × 185,518.46
  4. Step 4: Simplify right side
    761,889.78x = 212,014,762,864.02
  5. Step 5: Solve for x
    x = 212,014,762,864.02/761,889.78
  6. Step 6: Final answer
    x = 278,274.85

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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.