Home / 770,511.76-1,063,233.81-521,647.47

Finding the Fourth Proportional to 770,511.76, 1,063,233.81 and 521,647.47

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Solution

The fourth proportional to 770,511.76, 1,063,233.81 and 521,647.47 is: 719,824.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,511.76 : 1,063,233.81 = 521,647.47 : x
  2. Step 2: Convert to fraction form
    770,511.76/1,063,233.81 = 521,647.47/x
  3. Step 3: Cross multiply
    770,511.76x = 1,063,233.81 × 521,647.47
  4. Step 4: Simplify right side
    770,511.76x = 554,633,227,004.96
  5. Step 5: Solve for x
    x = 554,633,227,004.96/770,511.76
  6. Step 6: Final answer
    x = 719,824.48

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1.5x scale

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.