Home / 750,318.99-1,035,343.78-428,009.86

Finding the Fourth Proportional to 750,318.99, 1,035,343.78 and 428,009.86

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Solution

The fourth proportional to 750,318.99, 1,035,343.78 and 428,009.86 is: 590,598.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,318.99 : 1,035,343.78 = 428,009.86 : x
  2. Step 2: Convert to fraction form
    750,318.99/1,035,343.78 = 428,009.86/x
  3. Step 3: Cross multiply
    750,318.99x = 1,035,343.78 × 428,009.86
  4. Step 4: Simplify right side
    750,318.99x = 443,137,346,329.67
  5. Step 5: Solve for x
    x = 443,137,346,329.67/750,318.99
  6. Step 6: Final answer
    x = 590,598.60

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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.