Home / 1,406,367.71-1,940,785.62-761,790.47

Finding the Fourth Proportional to 1,406,367.71, 1,940,785.62 and 761,790.47

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Solution

The fourth proportional to 1,406,367.71, 1,940,785.62 and 761,790.47 is: 1,051,269.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,367.71 : 1,940,785.62 = 761,790.47 : x
  2. Step 2: Convert to fraction form
    1,406,367.71/1,940,785.62 = 761,790.47/x
  3. Step 3: Cross multiply
    1,406,367.71x = 1,940,785.62 × 761,790.47
  4. Step 4: Simplify right side
    1,406,367.71x = 1,478,471,987,985.32
  5. Step 5: Solve for x
    x = 1,478,471,987,985.32/1,406,367.71
  6. Step 6: Final answer
    x = 1,051,269.86

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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.