Home / 971,255.66-1,457,304.08-521,451.72

Finding the Fourth Proportional to 971,255.66, 1,457,304.08 and 521,451.72

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Solution

The fourth proportional to 971,255.66, 1,457,304.08 and 521,451.72 is: 782,403.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,255.66 : 1,457,304.08 = 521,451.72 : x
  2. Step 2: Convert to fraction form
    971,255.66/1,457,304.08 = 521,451.72/x
  3. Step 3: Cross multiply
    971,255.66x = 1,457,304.08 × 521,451.72
  4. Step 4: Simplify right side
    971,255.66x = 759,913,716,471.76
  5. Step 5: Solve for x
    x = 759,913,716,471.76/971,255.66
  6. Step 6: Final answer
    x = 782,403.39

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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.