Home / 971,364.96-1,457,222.76-439,136.64

Finding the Fourth Proportional to 971,364.96, 1,457,222.76 and 439,136.64

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Solution

The fourth proportional to 971,364.96, 1,457,222.76 and 439,136.64 is: 658,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,364.96 : 1,457,222.76 = 439,136.64 : x
  2. Step 2: Convert to fraction form
    971,364.96/1,457,222.76 = 439,136.64/x
  3. Step 3: Cross multiply
    971,364.96x = 1,457,222.76 × 439,136.64
  4. Step 4: Simplify right side
    971,364.96x = 639,919,906,557.93
  5. Step 5: Solve for x
    x = 639,919,906,557.93/971,364.96
  6. Step 6: Final answer
    x = 658,784.22

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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.