Home / 1,221,210.77-1,684,167.95-762,367.91

Finding the Fourth Proportional to 1,221,210.77, 1,684,167.95 and 762,367.91

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Solution

The fourth proportional to 1,221,210.77, 1,684,167.95 and 762,367.91 is: 1,051,379.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,210.77 : 1,684,167.95 = 762,367.91 : x
  2. Step 2: Convert to fraction form
    1,221,210.77/1,684,167.95 = 762,367.91/x
  3. Step 3: Cross multiply
    1,221,210.77x = 1,684,167.95 × 762,367.91
  4. Step 4: Simplify right side
    1,221,210.77x = 1,283,955,587,897.81
  5. Step 5: Solve for x
    x = 1,283,955,587,897.81/1,221,210.77
  6. Step 6: Final answer
    x = 1,051,379.19

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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.