Home / 890,394.52-1,228,505.34-508,345.24

Finding the Fourth Proportional to 890,394.52, 1,228,505.34 and 508,345.24

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Solution

The fourth proportional to 890,394.52, 1,228,505.34 and 508,345.24 is: 701,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,394.52 : 1,228,505.34 = 508,345.24 : x
  2. Step 2: Convert to fraction form
    890,394.52/1,228,505.34 = 508,345.24/x
  3. Step 3: Cross multiply
    890,394.52x = 1,228,505.34 × 508,345.24
  4. Step 4: Simplify right side
    890,394.52x = 624,504,841,903.58
  5. Step 5: Solve for x
    x = 624,504,841,903.58/890,394.52
  6. Step 6: Final answer
    x = 701,379.93

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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.