Home / 985,004.96-1,478,346.72-386,382.56

Finding the Fourth Proportional to 985,004.96, 1,478,346.72 and 386,382.56

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Solution

The fourth proportional to 985,004.96, 1,478,346.72 and 386,382.56 is: 579,903.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,004.96 : 1,478,346.72 = 386,382.56 : x
  2. Step 2: Convert to fraction form
    985,004.96/1,478,346.72 = 386,382.56/x
  3. Step 3: Cross multiply
    985,004.96x = 1,478,346.72 × 386,382.56
  4. Step 4: Simplify right side
    985,004.96x = 571,207,390,241.20
  5. Step 5: Solve for x
    x = 571,207,390,241.20/985,004.96
  6. Step 6: Final answer
    x = 579,903.06

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1.5x scale

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.