Home / 659,020.87-909,642.14-383,443.57

Finding the Fourth Proportional to 659,020.87, 909,642.14 and 383,443.57

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Solution

The fourth proportional to 659,020.87, 909,642.14 and 383,443.57 is: 529,264.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,020.87 : 909,642.14 = 383,443.57 : x
  2. Step 2: Convert to fraction form
    659,020.87/909,642.14 = 383,443.57/x
  3. Step 3: Cross multiply
    659,020.87x = 909,642.14 × 383,443.57
  4. Step 4: Simplify right side
    659,020.87x = 348,796,427,666.82
  5. Step 5: Solve for x
    x = 348,796,427,666.82/659,020.87
  6. Step 6: Final answer
    x = 529,264.62

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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.