Home / 680,789.54-1,020,711.42-301,503.59

Finding the Fourth Proportional to 680,789.54, 1,020,711.42 and 301,503.59

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Solution

The fourth proportional to 680,789.54, 1,020,711.42 and 301,503.59 is: 452,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,789.54 : 1,020,711.42 = 301,503.59 : x
  2. Step 2: Convert to fraction form
    680,789.54/1,020,711.42 = 301,503.59/x
  3. Step 3: Cross multiply
    680,789.54x = 1,020,711.42 × 301,503.59
  4. Step 4: Simplify right side
    680,789.54x = 307,748,157,484.00
  5. Step 5: Solve for x
    x = 307,748,157,484.00/680,789.54
  6. Step 6: Final answer
    x = 452,045.95

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1.5x scale

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.