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Finding the Fourth Proportional to 565,651.96, 780,583.28 and 320,659.45

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Solution

The fourth proportional to 565,651.96, 780,583.28 and 320,659.45 is: 442,500.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,651.96 : 780,583.28 = 320,659.45 : x
  2. Step 2: Convert to fraction form
    565,651.96/780,583.28 = 320,659.45/x
  3. Step 3: Cross multiply
    565,651.96x = 780,583.28 × 320,659.45
  4. Step 4: Simplify right side
    565,651.96x = 250,301,402,395.26
  5. Step 5: Solve for x
    x = 250,301,402,395.26/565,651.96
  6. Step 6: Final answer
    x = 442,500.72

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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.