Home / 680,929.90-1,021,978.05-302,433.10

Finding the Fourth Proportional to 680,929.90, 1,021,978.05 and 302,433.10

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Solution

The fourth proportional to 680,929.90, 1,021,978.05 and 302,433.10 is: 453,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,929.90 : 1,021,978.05 = 302,433.10 : x
  2. Step 2: Convert to fraction form
    680,929.90/1,021,978.05 = 302,433.10/x
  3. Step 3: Cross multiply
    680,929.90x = 1,021,978.05 × 302,433.10
  4. Step 4: Simplify right side
    680,929.90x = 309,079,989,793.46
  5. Step 5: Solve for x
    x = 309,079,989,793.46/680,929.90
  6. Step 6: Final answer
    x = 453,908.68

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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.