Home / 687,622.60-1,030,559.10-331,870.60

Finding the Fourth Proportional to 687,622.60, 1,030,559.10 and 331,870.60

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Solution

The fourth proportional to 687,622.60, 1,030,559.10 and 331,870.60 is: 497,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,622.60 : 1,030,559.10 = 331,870.60 : x
  2. Step 2: Convert to fraction form
    687,622.60/1,030,559.10 = 331,870.60/x
  3. Step 3: Cross multiply
    687,622.60x = 1,030,559.10 × 331,870.60
  4. Step 4: Simplify right side
    687,622.60x = 342,012,266,852.46
  5. Step 5: Solve for x
    x = 342,012,266,852.46/687,622.60
  6. Step 6: Final answer
    x = 497,383.69

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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.