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Finding the Fourth Proportional to 567,955.76, 783,781.19 and 309,838.22

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Solution

The fourth proportional to 567,955.76, 783,781.19 and 309,838.22 is: 427,577.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,955.76 : 783,781.19 = 309,838.22 : x
  2. Step 2: Convert to fraction form
    567,955.76/783,781.19 = 309,838.22/x
  3. Step 3: Cross multiply
    567,955.76x = 783,781.19 × 309,838.22
  4. Step 4: Simplify right side
    567,955.76x = 242,845,368,779.08
  5. Step 5: Solve for x
    x = 242,845,368,779.08/567,955.76
  6. Step 6: Final answer
    x = 427,577.97

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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.