Home / 750,056.64-1,035,074.40-405,892.32

Finding the Fourth Proportional to 750,056.64, 1,035,074.40 and 405,892.32

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Solution

The fourth proportional to 750,056.64, 1,035,074.40 and 405,892.32 is: 560,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,056.64 : 1,035,074.40 = 405,892.32 : x
  2. Step 2: Convert to fraction form
    750,056.64/1,035,074.40 = 405,892.32/x
  3. Step 3: Cross multiply
    750,056.64x = 1,035,074.40 × 405,892.32
  4. Step 4: Simplify right side
    750,056.64x = 420,128,749,588.61
  5. Step 5: Solve for x
    x = 420,128,749,588.61/750,056.64
  6. Step 6: Final answer
    x = 560,129.37

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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.