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Finding the Fourth Proportional to 567,731.61, 783,463.26 and 309,607.68

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Solution

The fourth proportional to 567,731.61, 783,463.26 and 309,607.68 is: 427,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,731.61 : 783,463.26 = 309,607.68 : x
  2. Step 2: Convert to fraction form
    567,731.61/783,463.26 = 309,607.68/x
  3. Step 3: Cross multiply
    567,731.61x = 783,463.26 × 309,607.68
  4. Step 4: Simplify right side
    567,731.61x = 242,566,242,293.84
  5. Step 5: Solve for x
    x = 242,566,242,293.84/567,731.61
  6. Step 6: Final answer
    x = 427,255.13

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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.