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Finding the Fourth Proportional to 606,149.40, 909,774.90 and 306,838.20

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Solution

The fourth proportional to 606,149.40, 909,774.90 and 306,838.20 is: 460,536.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,149.40 : 909,774.90 = 306,838.20 : x
  2. Step 2: Convert to fraction form
    606,149.40/909,774.90 = 306,838.20/x
  3. Step 3: Cross multiply
    606,149.40x = 909,774.90 × 306,838.20
  4. Step 4: Simplify right side
    606,149.40x = 279,153,692,721.18
  5. Step 5: Solve for x
    x = 279,153,692,721.18/606,149.40
  6. Step 6: Final answer
    x = 460,536.12

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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.