Home / 1,012,105.74-1,518,237.02-338,189.39

Finding the Fourth Proportional to 1,012,105.74, 1,518,237.02 and 338,189.39

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Solution

The fourth proportional to 1,012,105.74, 1,518,237.02 and 338,189.39 is: 507,310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,105.74 : 1,518,237.02 = 338,189.39 : x
  2. Step 2: Convert to fraction form
    1,012,105.74/1,518,237.02 = 338,189.39/x
  3. Step 3: Cross multiply
    1,012,105.74x = 1,518,237.02 × 338,189.39
  4. Step 4: Simplify right side
    1,012,105.74x = 513,451,648,714.58
  5. Step 5: Solve for x
    x = 513,451,648,714.58/1,012,105.74
  6. Step 6: Final answer
    x = 507,310.28

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Double scale
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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.