Home / 1,283,720.90-1,771,590.18-710,761.05

Finding the Fourth Proportional to 1,283,720.90, 1,771,590.18 and 710,761.05

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Solution

The fourth proportional to 1,283,720.90, 1,771,590.18 and 710,761.05 is: 980,880.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,720.90 : 1,771,590.18 = 710,761.05 : x
  2. Step 2: Convert to fraction form
    1,283,720.90/1,771,590.18 = 710,761.05/x
  3. Step 3: Cross multiply
    1,283,720.90x = 1,771,590.18 × 710,761.05
  4. Step 4: Simplify right side
    1,283,720.90x = 1,259,177,296,506.49
  5. Step 5: Solve for x
    x = 1,259,177,296,506.49/1,283,720.90
  6. Step 6: Final answer
    x = 980,880.89

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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.