Home / 680,921.90-1,021,966.05-302,425.10

Finding the Fourth Proportional to 680,921.90, 1,021,966.05 and 302,425.10

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Solution

The fourth proportional to 680,921.90, 1,021,966.05 and 302,425.10 is: 453,896.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,921.90 : 1,021,966.05 = 302,425.10 : x
  2. Step 2: Convert to fraction form
    680,921.90/1,021,966.05 = 302,425.10/x
  3. Step 3: Cross multiply
    680,921.90x = 1,021,966.05 × 302,425.10
  4. Step 4: Simplify right side
    680,921.90x = 309,068,184,867.86
  5. Step 5: Solve for x
    x = 309,068,184,867.86/680,921.90
  6. Step 6: Final answer
    x = 453,896.67

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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.