Home / 1,431,490-2,147,247.96-434,218

Finding the Fourth Proportional to 1,431,490, 2,147,247.96 and 434,218

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Solution

The fourth proportional to 1,431,490, 2,147,247.96 and 434,218 is: 651,330.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,490 : 2,147,247.96 = 434,218 : x
  2. Step 2: Convert to fraction form
    1,431,490/2,147,247.96 = 434,218/x
  3. Step 3: Cross multiply
    1,431,490x = 2,147,247.96 × 434,218
  4. Step 4: Simplify right side
    1,431,490x = 932,373,714,695.28
  5. Step 5: Solve for x
    x = 932,373,714,695.28/1,431,490
  6. Step 6: Final answer
    x = 651,330.93

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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.