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Finding the Fourth Proportional to 603,169.92, 831,643.04 and 521,350.72

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Solution

The fourth proportional to 603,169.92, 831,643.04 and 521,350.72 is: 718,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,169.92 : 831,643.04 = 521,350.72 : x
  2. Step 2: Convert to fraction form
    603,169.92/831,643.04 = 521,350.72/x
  3. Step 3: Cross multiply
    603,169.92x = 831,643.04 × 521,350.72
  4. Step 4: Simplify right side
    603,169.92x = 433,577,697,686.99
  5. Step 5: Solve for x
    x = 433,577,697,686.99/603,169.92
  6. Step 6: Final answer
    x = 718,831.76

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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.