Home / 705,921.39-974,208.89-400,057.29

Finding the Fourth Proportional to 705,921.39, 974,208.89 and 400,057.29

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Solution

The fourth proportional to 705,921.39, 974,208.89 and 400,057.29 is: 552,100.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,921.39 : 974,208.89 = 400,057.29 : x
  2. Step 2: Convert to fraction form
    705,921.39/974,208.89 = 400,057.29/x
  3. Step 3: Cross multiply
    705,921.39x = 974,208.89 × 400,057.29
  4. Step 4: Simplify right side
    705,921.39x = 389,739,366,427.02
  5. Step 5: Solve for x
    x = 389,739,366,427.02/705,921.39
  6. Step 6: Final answer
    x = 552,100.24

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1.5x scale

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.