Home / 722,658.50-1,089,066.77-650,699.45

Finding the Fourth Proportional to 722,658.50, 1,089,066.77 and 650,699.45

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Solution

The fourth proportional to 722,658.50, 1,089,066.77 and 650,699.45 is: 980,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,658.50 : 1,089,066.77 = 650,699.45 : x
  2. Step 2: Convert to fraction form
    722,658.50/1,089,066.77 = 650,699.45/x
  3. Step 3: Cross multiply
    722,658.50x = 1,089,066.77 × 650,699.45
  4. Step 4: Simplify right side
    722,658.50x = 708,655,148,252.28
  5. Step 5: Solve for x
    x = 708,655,148,252.28/722,658.50
  6. Step 6: Final answer
    x = 980,622.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.