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Finding the Fourth Proportional to 606,276.70, 909,415.05 and 472,432.30

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Solution

The fourth proportional to 606,276.70, 909,415.05 and 472,432.30 is: 708,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,276.70 : 909,415.05 = 472,432.30 : x
  2. Step 2: Convert to fraction form
    606,276.70/909,415.05 = 472,432.30/x
  3. Step 3: Cross multiply
    606,276.70x = 909,415.05 × 472,432.30
  4. Step 4: Simplify right side
    606,276.70x = 429,637,043,726.12
  5. Step 5: Solve for x
    x = 429,637,043,726.12/606,276.70
  6. Step 6: Final answer
    x = 708,648.45

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Double scale
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Similar ratio
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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.