Home / 1,370,613.74-1,887,222.30-1,217,385.68

Finding the Fourth Proportional to 1,370,613.74, 1,887,222.30 and 1,217,385.68

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Solution

The fourth proportional to 1,370,613.74, 1,887,222.30 and 1,217,385.68 is: 1,676,239.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,613.74 : 1,887,222.30 = 1,217,385.68 : x
  2. Step 2: Convert to fraction form
    1,370,613.74/1,887,222.30 = 1,217,385.68/x
  3. Step 3: Cross multiply
    1,370,613.74x = 1,887,222.30 × 1,217,385.68
  4. Step 4: Simplify right side
    1,370,613.74x = 2,297,477,402,996.66
  5. Step 5: Solve for x
    x = 2,297,477,402,996.66/1,370,613.74
  6. Step 6: Final answer
    x = 1,676,239.87

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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.