Home / 481,723.60-721,807.80-402,408.40

Finding the Fourth Proportional to 481,723.60, 721,807.80 and 402,408.40

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Solution

The fourth proportional to 481,723.60, 721,807.80 and 402,408.40 is: 602,963.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,723.60 : 721,807.80 = 402,408.40 : x
  2. Step 2: Convert to fraction form
    481,723.60/721,807.80 = 402,408.40/x
  3. Step 3: Cross multiply
    481,723.60x = 721,807.80 × 402,408.40
  4. Step 4: Simplify right side
    481,723.60x = 290,461,521,905.52
  5. Step 5: Solve for x
    x = 290,461,521,905.52/481,723.60
  6. Step 6: Final answer
    x = 602,963.03

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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.