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Finding the Fourth Proportional to 567,782.06, 783,540.02 and 309,659.63

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Solution

The fourth proportional to 567,782.06, 783,540.02 and 309,659.63 is: 427,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,782.06 : 783,540.02 = 309,659.63 : x
  2. Step 2: Convert to fraction form
    567,782.06/783,540.02 = 309,659.63/x
  3. Step 3: Cross multiply
    567,782.06x = 783,540.02 × 309,659.63
  4. Step 4: Simplify right side
    567,782.06x = 242,630,712,683.39
  5. Step 5: Solve for x
    x = 242,630,712,683.39/567,782.06
  6. Step 6: Final answer
    x = 427,330.71

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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.