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Finding the Fourth Proportional to 659,309.63, 909,847.76 and 357,503.63

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Solution

The fourth proportional to 659,309.63, 909,847.76 and 357,503.63 is: 493,355.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,309.63 : 909,847.76 = 357,503.63 : x
  2. Step 2: Convert to fraction form
    659,309.63/909,847.76 = 357,503.63/x
  3. Step 3: Cross multiply
    659,309.63x = 909,847.76 × 357,503.63
  4. Step 4: Simplify right side
    659,309.63x = 325,273,870,610.61
  5. Step 5: Solve for x
    x = 325,273,870,610.61/659,309.63
  6. Step 6: Final answer
    x = 493,355.26

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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.