Home / 1,123,990.64-1,686,539.54-524,864.72

Finding the Fourth Proportional to 1,123,990.64, 1,686,539.54 and 524,864.72

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Solution

The fourth proportional to 1,123,990.64, 1,686,539.54 and 524,864.72 is: 787,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,990.64 : 1,686,539.54 = 524,864.72 : x
  2. Step 2: Convert to fraction form
    1,123,990.64/1,686,539.54 = 524,864.72/x
  3. Step 3: Cross multiply
    1,123,990.64x = 1,686,539.54 × 524,864.72
  4. Step 4: Simplify right side
    1,123,990.64x = 885,205,108,959.54
  5. Step 5: Solve for x
    x = 885,205,108,959.54/1,123,990.64
  6. Step 6: Final answer
    x = 787,555.59

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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.