Home / 753,287.57-1,039,544.34-409,130.21

Finding the Fourth Proportional to 753,287.57, 1,039,544.34 and 409,130.21

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Solution

The fourth proportional to 753,287.57, 1,039,544.34 and 409,130.21 is: 564,603.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,287.57 : 1,039,544.34 = 409,130.21 : x
  2. Step 2: Convert to fraction form
    753,287.57/1,039,544.34 = 409,130.21/x
  3. Step 3: Cross multiply
    753,287.57x = 1,039,544.34 × 409,130.21
  4. Step 4: Simplify right side
    753,287.57x = 425,308,988,930.79
  5. Step 5: Solve for x
    x = 425,308,988,930.79/753,287.57
  6. Step 6: Final answer
    x = 564,603.76

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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.