Home / 495,693.10-684,058.74-280,875.03

Finding the Fourth Proportional to 495,693.10, 684,058.74 and 280,875.03

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Solution

The fourth proportional to 495,693.10, 684,058.74 and 280,875.03 is: 387,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,693.10 : 684,058.74 = 280,875.03 : x
  2. Step 2: Convert to fraction form
    495,693.10/684,058.74 = 280,875.03/x
  3. Step 3: Cross multiply
    495,693.10x = 684,058.74 × 280,875.03
  4. Step 4: Simplify right side
    495,693.10x = 192,135,015,500.76
  5. Step 5: Solve for x
    x = 192,135,015,500.76/495,693.10
  6. Step 6: Final answer
    x = 387,608.81

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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.