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Finding the Fourth Proportional to 495,888.56, 684,346.60 and 281,026.32

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Solution

The fourth proportional to 495,888.56, 684,346.60 and 281,026.32 is: 387,827.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,888.56 : 684,346.60 = 281,026.32 : x
  2. Step 2: Convert to fraction form
    495,888.56/684,346.60 = 281,026.32/x
  3. Step 3: Cross multiply
    495,888.56x = 684,346.60 × 281,026.32
  4. Step 4: Simplify right side
    495,888.56x = 192,319,406,602.51
  5. Step 5: Solve for x
    x = 192,319,406,602.51/495,888.56
  6. Step 6: Final answer
    x = 387,827.88

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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.