Home / 917,508.36-1,376,262.56-286,476.24

Finding the Fourth Proportional to 917,508.36, 1,376,262.56 and 286,476.24

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Solution

The fourth proportional to 917,508.36, 1,376,262.56 and 286,476.24 is: 429,714.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,508.36 : 1,376,262.56 = 286,476.24 : x
  2. Step 2: Convert to fraction form
    917,508.36/1,376,262.56 = 286,476.24/x
  3. Step 3: Cross multiply
    917,508.36x = 1,376,262.56 × 286,476.24
  4. Step 4: Simplify right side
    917,508.36x = 394,266,523,441.57
  5. Step 5: Solve for x
    x = 394,266,523,441.57/917,508.36
  6. Step 6: Final answer
    x = 429,714.37

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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.