Home / 521,268.14-719,436.06-357,790.30

Finding the Fourth Proportional to 521,268.14, 719,436.06 and 357,790.30

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Solution

The fourth proportional to 521,268.14, 719,436.06 and 357,790.30 is: 493,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,268.14 : 719,436.06 = 357,790.30 : x
  2. Step 2: Convert to fraction form
    521,268.14/719,436.06 = 357,790.30/x
  3. Step 3: Cross multiply
    521,268.14x = 719,436.06 × 357,790.30
  4. Step 4: Simplify right side
    521,268.14x = 257,407,241,939.63
  5. Step 5: Solve for x
    x = 257,407,241,939.63/521,268.14
  6. Step 6: Final answer
    x = 493,809.66

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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.