Home / 687,441.60-1,030,762.73-459,997.11

Finding the Fourth Proportional to 687,441.60, 1,030,762.73 and 459,997.11

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Solution

The fourth proportional to 687,441.60, 1,030,762.73 and 459,997.11 is: 689,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,441.60 : 1,030,762.73 = 459,997.11 : x
  2. Step 2: Convert to fraction form
    687,441.60/1,030,762.73 = 459,997.11/x
  3. Step 3: Cross multiply
    687,441.60x = 1,030,762.73 × 459,997.11
  4. Step 4: Simplify right side
    687,441.60x = 474,147,878,045.70
  5. Step 5: Solve for x
    x = 474,147,878,045.70/687,441.60
  6. Step 6: Final answer
    x = 689,728.23

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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.