Home / 1,283,721.40-1,771,590.87-710,761.55

Finding the Fourth Proportional to 1,283,721.40, 1,771,590.87 and 710,761.55

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Solution

The fourth proportional to 1,283,721.40, 1,771,590.87 and 710,761.55 is: 980,881.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,721.40 : 1,771,590.87 = 710,761.55 : x
  2. Step 2: Convert to fraction form
    1,283,721.40/1,771,590.87 = 710,761.55/x
  3. Step 3: Cross multiply
    1,283,721.40x = 1,771,590.87 × 710,761.55
  4. Step 4: Simplify right side
    1,283,721.40x = 1,259,178,672,727.05
  5. Step 5: Solve for x
    x = 1,259,178,672,727.05/1,283,721.40
  6. Step 6: Final answer
    x = 980,881.58

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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.