Home / 648,361.40-971,724.02-328,593.62

Finding the Fourth Proportional to 648,361.40, 971,724.02 and 328,593.62

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Solution

The fourth proportional to 648,361.40, 971,724.02 and 328,593.62 is: 492,475.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,361.40 : 971,724.02 = 328,593.62 : x
  2. Step 2: Convert to fraction form
    648,361.40/971,724.02 = 328,593.62/x
  3. Step 3: Cross multiply
    648,361.40x = 971,724.02 × 328,593.62
  4. Step 4: Simplify right side
    648,361.40x = 319,302,314,159.09
  5. Step 5: Solve for x
    x = 319,302,314,159.09/648,361.40
  6. Step 6: Final answer
    x = 492,475.83

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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.