Home / 971,918.40-1,457,440.20-439,165.20

Finding the Fourth Proportional to 971,918.40, 1,457,440.20 and 439,165.20

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Solution

The fourth proportional to 971,918.40, 1,457,440.20 and 439,165.20 is: 658,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,918.40 : 1,457,440.20 = 439,165.20 : x
  2. Step 2: Convert to fraction form
    971,918.40/1,457,440.20 = 439,165.20/x
  3. Step 3: Cross multiply
    971,918.40x = 1,457,440.20 × 439,165.20
  4. Step 4: Simplify right side
    971,918.40x = 640,057,016,921.04
  5. Step 5: Solve for x
    x = 640,057,016,921.04/971,918.40
  6. Step 6: Final answer
    x = 658,550.16

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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.