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Finding the Fourth Proportional to 659,277.98, 909,809.09 and 357,471.98

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Solution

The fourth proportional to 659,277.98, 909,809.09 and 357,471.98 is: 493,314.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,277.98 : 909,809.09 = 357,471.98 : x
  2. Step 2: Convert to fraction form
    659,277.98/909,809.09 = 357,471.98/x
  3. Step 3: Cross multiply
    659,277.98x = 909,809.09 × 357,471.98
  4. Step 4: Simplify right side
    659,277.98x = 325,231,259,352.48
  5. Step 5: Solve for x
    x = 325,231,259,352.48/659,277.98
  6. Step 6: Final answer
    x = 493,314.30

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1.5x scale

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.