Home / 687,059.66-1,030,106.60-302,626.06

Finding the Fourth Proportional to 687,059.66, 1,030,106.60 and 302,626.06

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Solution

The fourth proportional to 687,059.66, 1,030,106.60 and 302,626.06 is: 453,726.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,059.66 : 1,030,106.60 = 302,626.06 : x
  2. Step 2: Convert to fraction form
    687,059.66/1,030,106.60 = 302,626.06/x
  3. Step 3: Cross multiply
    687,059.66x = 1,030,106.60 × 302,626.06
  4. Step 4: Simplify right side
    687,059.66x = 311,737,101,738.00
  5. Step 5: Solve for x
    x = 311,737,101,738.00/687,059.66
  6. Step 6: Final answer
    x = 453,726.39

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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.