Home / 1,222,123.66-1,686,733.35-712,826.02

Finding the Fourth Proportional to 1,222,123.66, 1,686,733.35 and 712,826.02

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Solution

The fourth proportional to 1,222,123.66, 1,686,733.35 and 712,826.02 is: 983,818.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,123.66 : 1,686,733.35 = 712,826.02 : x
  2. Step 2: Convert to fraction form
    1,222,123.66/1,686,733.35 = 712,826.02/x
  3. Step 3: Cross multiply
    1,222,123.66x = 1,686,733.35 × 712,826.02
  4. Step 4: Simplify right side
    1,222,123.66x = 1,202,347,420,681.77
  5. Step 5: Solve for x
    x = 1,202,347,420,681.77/1,222,123.66
  6. Step 6: Final answer
    x = 983,818.14

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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.