Home / 680,784.81-1,020,704.32-301,498.84

Finding the Fourth Proportional to 680,784.81, 1,020,704.32 and 301,498.84

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Solution

The fourth proportional to 680,784.81, 1,020,704.32 and 301,498.84 is: 452,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,784.81 : 1,020,704.32 = 301,498.84 : x
  2. Step 2: Convert to fraction form
    680,784.81/1,020,704.32 = 301,498.84/x
  3. Step 3: Cross multiply
    680,784.81x = 1,020,704.32 × 301,498.84
  4. Step 4: Simplify right side
    680,784.81x = 307,741,168,462.99
  5. Step 5: Solve for x
    x = 307,741,168,462.99/680,784.81
  6. Step 6: Final answer
    x = 452,038.83

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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.