Home / 1,038,624.57-1,558,015.65-280,455

Finding the Fourth Proportional to 1,038,624.57, 1,558,015.65 and 280,455

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Solution

The fourth proportional to 1,038,624.57, 1,558,015.65 and 280,455 is: 420,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,624.57 : 1,558,015.65 = 280,455 : x
  2. Step 2: Convert to fraction form
    1,038,624.57/1,558,015.65 = 280,455/x
  3. Step 3: Cross multiply
    1,038,624.57x = 1,558,015.65 × 280,455
  4. Step 4: Simplify right side
    1,038,624.57x = 436,953,279,120.75
  5. Step 5: Solve for x
    x = 436,953,279,120.75/1,038,624.57
  6. Step 6: Final answer
    x = 420,703.78

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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.