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Finding the Fourth Proportional to 606,485.80, 909,728.70 and 488,387.80

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Solution

The fourth proportional to 606,485.80, 909,728.70 and 488,387.80 is: 732,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,485.80 : 909,728.70 = 488,387.80 : x
  2. Step 2: Convert to fraction form
    606,485.80/909,728.70 = 488,387.80/x
  3. Step 3: Cross multiply
    606,485.80x = 909,728.70 × 488,387.80
  4. Step 4: Simplify right side
    606,485.80x = 444,300,398,389.86
  5. Step 5: Solve for x
    x = 444,300,398,389.86/606,485.80
  6. Step 6: Final answer
    x = 732,581.70

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1.5x scale

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.