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Finding the Fourth Proportional to 659,027.34, 909,459.90 and 357,221.34

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Solution

The fourth proportional to 659,027.34, 909,459.90 and 357,221.34 is: 492,966.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,027.34 : 909,459.90 = 357,221.34 : x
  2. Step 2: Convert to fraction form
    659,027.34/909,459.90 = 357,221.34/x
  3. Step 3: Cross multiply
    659,027.34x = 909,459.90 × 357,221.34
  4. Step 4: Simplify right side
    659,027.34x = 324,878,484,154.27
  5. Step 5: Solve for x
    x = 324,878,484,154.27/659,027.34
  6. Step 6: Final answer
    x = 492,966.63

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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.