Home / 870,146.08-1,305,471.84-309,224.32

Finding the Fourth Proportional to 870,146.08, 1,305,471.84 and 309,224.32

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Solution

The fourth proportional to 870,146.08, 1,305,471.84 and 309,224.32 is: 463,926.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,146.08 : 1,305,471.84 = 309,224.32 : x
  2. Step 2: Convert to fraction form
    870,146.08/1,305,471.84 = 309,224.32/x
  3. Step 3: Cross multiply
    870,146.08x = 1,305,471.84 × 309,224.32
  4. Step 4: Simplify right side
    870,146.08x = 403,683,642,003.15
  5. Step 5: Solve for x
    x = 403,683,642,003.15/870,146.08
  6. Step 6: Final answer
    x = 463,926.29

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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.