Home / 1,240,496.78-1,711,926.90-696,728.39

Finding the Fourth Proportional to 1,240,496.78, 1,711,926.90 and 696,728.39

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Solution

The fourth proportional to 1,240,496.78, 1,711,926.90 and 696,728.39 is: 961,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,496.78 : 1,711,926.90 = 696,728.39 : x
  2. Step 2: Convert to fraction form
    1,240,496.78/1,711,926.90 = 696,728.39/x
  3. Step 3: Cross multiply
    1,240,496.78x = 1,711,926.90 × 696,728.39
  4. Step 4: Simplify right side
    1,240,496.78x = 1,192,748,064,275.06
  5. Step 5: Solve for x
    x = 1,192,748,064,275.06/1,240,496.78
  6. Step 6: Final answer
    x = 961,508.40

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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.