Home / 971,412.30-1,457,118.45-929,421.90

Finding the Fourth Proportional to 971,412.30, 1,457,118.45 and 929,421.90

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Solution

The fourth proportional to 971,412.30, 1,457,118.45 and 929,421.90 is: 1,394,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,412.30 : 1,457,118.45 = 929,421.90 : x
  2. Step 2: Convert to fraction form
    971,412.30/1,457,118.45 = 929,421.90/x
  3. Step 3: Cross multiply
    971,412.30x = 1,457,118.45 × 929,421.90
  4. Step 4: Simplify right side
    971,412.30x = 1,354,277,798,324.06
  5. Step 5: Solve for x
    x = 1,354,277,798,324.06/971,412.30
  6. Step 6: Final answer
    x = 1,394,132.85

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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.