Home / 723,009.40-1,084,514.10-423,827.80

Finding the Fourth Proportional to 723,009.40, 1,084,514.10 and 423,827.80

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Solution

The fourth proportional to 723,009.40, 1,084,514.10 and 423,827.80 is: 635,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,009.40 : 1,084,514.10 = 423,827.80 : x
  2. Step 2: Convert to fraction form
    723,009.40/1,084,514.10 = 423,827.80/x
  3. Step 3: Cross multiply
    723,009.40x = 1,084,514.10 × 423,827.80
  4. Step 4: Simplify right side
    723,009.40x = 459,647,225,071.98
  5. Step 5: Solve for x
    x = 459,647,225,071.98/723,009.40
  6. Step 6: Final answer
    x = 635,741.70

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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.