Home / 1,221,722.46-1,686,967.56-763,371

Finding the Fourth Proportional to 1,221,722.46, 1,686,967.56 and 763,371

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Solution

The fourth proportional to 1,221,722.46, 1,686,967.56 and 763,371 is: 1,054,070.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,722.46 : 1,686,967.56 = 763,371 : x
  2. Step 2: Convert to fraction form
    1,221,722.46/1,686,967.56 = 763,371/x
  3. Step 3: Cross multiply
    1,221,722.46x = 1,686,967.56 × 763,371
  4. Step 4: Simplify right side
    1,221,722.46x = 1,287,782,113,244.76
  5. Step 5: Solve for x
    x = 1,287,782,113,244.76/1,221,722.46
  6. Step 6: Final answer
    x = 1,054,070.92

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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.