Home / 603,491.31-831,330.79-517,173.15

Finding the Fourth Proportional to 603,491.31, 831,330.79 and 517,173.15

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Solution

The fourth proportional to 603,491.31, 831,330.79 and 517,173.15 is: 712,424.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,491.31 : 831,330.79 = 517,173.15 : x
  2. Step 2: Convert to fraction form
    603,491.31/831,330.79 = 517,173.15/x
  3. Step 3: Cross multiply
    603,491.31x = 831,330.79 × 517,173.15
  4. Step 4: Simplify right side
    603,491.31x = 429,941,968,089.95
  5. Step 5: Solve for x
    x = 429,941,968,089.95/603,491.31
  6. Step 6: Final answer
    x = 712,424.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.