Home / 890,390.52-1,228,499.82-508,341.24

Finding the Fourth Proportional to 890,390.52, 1,228,499.82 and 508,341.24

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Solution

The fourth proportional to 890,390.52, 1,228,499.82 and 508,341.24 is: 701,374.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,390.52 : 1,228,499.82 = 508,341.24 : x
  2. Step 2: Convert to fraction form
    890,390.52/1,228,499.82 = 508,341.24/x
  3. Step 3: Cross multiply
    890,390.52x = 1,228,499.82 × 508,341.24
  4. Step 4: Simplify right side
    890,390.52x = 624,497,121,838.58
  5. Step 5: Solve for x
    x = 624,497,121,838.58/890,390.52
  6. Step 6: Final answer
    x = 701,374.41

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.