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Finding the Fourth Proportional to 661,416.96, 912,750.48 and 359,610.96

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Solution

The fourth proportional to 661,416.96, 912,750.48 and 359,610.96 is: 496,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,416.96 : 912,750.48 = 359,610.96 : x
  2. Step 2: Convert to fraction form
    661,416.96/912,750.48 = 359,610.96/x
  3. Step 3: Cross multiply
    661,416.96x = 912,750.48 × 359,610.96
  4. Step 4: Simplify right side
    661,416.96x = 328,235,076,353.26
  5. Step 5: Solve for x
    x = 328,235,076,353.26/661,416.96
  6. Step 6: Final answer
    x = 496,260.45

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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.