Home / 680,100.72-1,018,968.84-477,266.64

Finding the Fourth Proportional to 680,100.72, 1,018,968.84 and 477,266.64

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Solution

The fourth proportional to 680,100.72, 1,018,968.84 and 477,266.64 is: 715,070.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,100.72 : 1,018,968.84 = 477,266.64 : x
  2. Step 2: Convert to fraction form
    680,100.72/1,018,968.84 = 477,266.64/x
  3. Step 3: Cross multiply
    680,100.72x = 1,018,968.84 × 477,266.64
  4. Step 4: Simplify right side
    680,100.72x = 486,319,834,531.50
  5. Step 5: Solve for x
    x = 486,319,834,531.50/680,100.72
  6. Step 6: Final answer
    x = 715,070.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.