Home / 717,815.93-990,655.79-536,212.58

Finding the Fourth Proportional to 717,815.93, 990,655.79 and 536,212.58

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Solution

The fourth proportional to 717,815.93, 990,655.79 and 536,212.58 is: 740,025.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,815.93 : 990,655.79 = 536,212.58 : x
  2. Step 2: Convert to fraction form
    717,815.93/990,655.79 = 536,212.58/x
  3. Step 3: Cross multiply
    717,815.93x = 990,655.79 × 536,212.58
  4. Step 4: Simplify right side
    717,815.93x = 531,202,089,413.50
  5. Step 5: Solve for x
    x = 531,202,089,413.50/717,815.93
  6. Step 6: Final answer
    x = 740,025.50

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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.