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Finding the Fourth Proportional to 611,577.54, 843,988.32 and 339,670.62

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Solution

The fourth proportional to 611,577.54, 843,988.32 and 339,670.62 is: 468,751.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,577.54 : 843,988.32 = 339,670.62 : x
  2. Step 2: Convert to fraction form
    611,577.54/843,988.32 = 339,670.62/x
  3. Step 3: Cross multiply
    611,577.54x = 843,988.32 × 339,670.62
  4. Step 4: Simplify right side
    611,577.54x = 286,678,035,927.16
  5. Step 5: Solve for x
    x = 286,678,035,927.16/611,577.54
  6. Step 6: Final answer
    x = 468,751.74

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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.