Home / 1,383,502.63-1,909,236.20-771,695.02

Finding the Fourth Proportional to 1,383,502.63, 1,909,236.20 and 771,695.02

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Solution

The fourth proportional to 1,383,502.63, 1,909,236.20 and 771,695.02 is: 1,064,940.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,502.63 : 1,909,236.20 = 771,695.02 : x
  2. Step 2: Convert to fraction form
    1,383,502.63/1,909,236.20 = 771,695.02/x
  3. Step 3: Cross multiply
    1,383,502.63x = 1,909,236.20 × 771,695.02
  4. Step 4: Simplify right side
    1,383,502.63x = 1,473,348,061,172.67
  5. Step 5: Solve for x
    x = 1,473,348,061,172.67/1,383,502.63
  6. Step 6: Final answer
    x = 1,064,940.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.