Home / 753,409.59-1,039,700.30-409,242.39

Finding the Fourth Proportional to 753,409.59, 1,039,700.30 and 409,242.39

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Solution

The fourth proportional to 753,409.59, 1,039,700.30 and 409,242.39 is: 564,751.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,409.59 : 1,039,700.30 = 409,242.39 : x
  2. Step 2: Convert to fraction form
    753,409.59/1,039,700.30 = 409,242.39/x
  3. Step 3: Cross multiply
    753,409.59x = 1,039,700.30 × 409,242.39
  4. Step 4: Simplify right side
    753,409.59x = 425,489,433,609.51
  5. Step 5: Solve for x
    x = 425,489,433,609.51/753,409.59
  6. Step 6: Final answer
    x = 564,751.82

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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.