Home / 971,340.30-1,457,010.45-687,905.10

Finding the Fourth Proportional to 971,340.30, 1,457,010.45 and 687,905.10

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Solution

The fourth proportional to 971,340.30, 1,457,010.45 and 687,905.10 is: 1,031,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,340.30 : 1,457,010.45 = 687,905.10 : x
  2. Step 2: Convert to fraction form
    971,340.30/1,457,010.45 = 687,905.10/x
  3. Step 3: Cross multiply
    971,340.30x = 1,457,010.45 × 687,905.10
  4. Step 4: Simplify right side
    971,340.30x = 1,002,284,919,308.30
  5. Step 5: Solve for x
    x = 1,002,284,919,308.30/971,340.30
  6. Step 6: Final answer
    x = 1,031,857.65

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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.