Home / 1,123,807.50-1,685,712.87-458,959.50

Finding the Fourth Proportional to 1,123,807.50, 1,685,712.87 and 458,959.50

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Solution

The fourth proportional to 1,123,807.50, 1,685,712.87 and 458,959.50 is: 688,439.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,807.50 : 1,685,712.87 = 458,959.50 : x
  2. Step 2: Convert to fraction form
    1,123,807.50/1,685,712.87 = 458,959.50/x
  3. Step 3: Cross multiply
    1,123,807.50x = 1,685,712.87 × 458,959.50
  4. Step 4: Simplify right side
    1,123,807.50x = 773,673,935,958.77
  5. Step 5: Solve for x
    x = 773,673,935,958.77/1,123,807.50
  6. Step 6: Final answer
    x = 688,439.91

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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.