Home / 808,002.60-1,211,235.90-302,428.20

Finding the Fourth Proportional to 808,002.60, 1,211,235.90 and 302,428.20

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Solution

The fourth proportional to 808,002.60, 1,211,235.90 and 302,428.20 is: 453,354.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,002.60 : 1,211,235.90 = 302,428.20 : x
  2. Step 2: Convert to fraction form
    808,002.60/1,211,235.90 = 302,428.20/x
  3. Step 3: Cross multiply
    808,002.60x = 1,211,235.90 × 302,428.20
  4. Step 4: Simplify right side
    808,002.60x = 366,311,893,012.38
  5. Step 5: Solve for x
    x = 366,311,893,012.38/808,002.60
  6. Step 6: Final answer
    x = 453,354.84

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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.