Home / 909,234.60-1,363,556.82-429,388.20

Finding the Fourth Proportional to 909,234.60, 1,363,556.82 and 429,388.20

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Solution

The fourth proportional to 909,234.60, 1,363,556.82 and 429,388.20 is: 643,942.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,234.60 : 1,363,556.82 = 429,388.20 : x
  2. Step 2: Convert to fraction form
    909,234.60/1,363,556.82 = 429,388.20/x
  3. Step 3: Cross multiply
    909,234.60x = 1,363,556.82 × 429,388.20
  4. Step 4: Simplify right side
    909,234.60x = 585,495,208,537.52
  5. Step 5: Solve for x
    x = 585,495,208,537.52/909,234.60
  6. Step 6: Final answer
    x = 643,942.95

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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.