Home / 753,108.36-1,039,285.73-408,941.28

Finding the Fourth Proportional to 753,108.36, 1,039,285.73 and 408,941.28

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Solution

The fourth proportional to 753,108.36, 1,039,285.73 and 408,941.28 is: 564,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,108.36 : 1,039,285.73 = 408,941.28 : x
  2. Step 2: Convert to fraction form
    753,108.36/1,039,285.73 = 408,941.28/x
  3. Step 3: Cross multiply
    753,108.36x = 1,039,285.73 × 408,941.28
  4. Step 4: Simplify right side
    753,108.36x = 425,006,834,667.23
  5. Step 5: Solve for x
    x = 425,006,834,667.23/753,108.36
  6. Step 6: Final answer
    x = 564,336.90

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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.