Home / 831,041.20-1,246,561.80-689,323.60

Finding the Fourth Proportional to 831,041.20, 1,246,561.80 and 689,323.60

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Solution

The fourth proportional to 831,041.20, 1,246,561.80 and 689,323.60 is: 1,033,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,041.20 : 1,246,561.80 = 689,323.60 : x
  2. Step 2: Convert to fraction form
    831,041.20/1,246,561.80 = 689,323.60/x
  3. Step 3: Cross multiply
    831,041.20x = 1,246,561.80 × 689,323.60
  4. Step 4: Simplify right side
    831,041.20x = 859,284,467,598.48
  5. Step 5: Solve for x
    x = 859,284,467,598.48/831,041.20
  6. Step 6: Final answer
    x = 1,033,985.40

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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.