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Finding the Fourth Proportional to 495,689.84, 684,058.20 and 269,339.12

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Solution

The fourth proportional to 495,689.84, 684,058.20 and 269,339.12 is: 371,691.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,689.84 : 684,058.20 = 269,339.12 : x
  2. Step 2: Convert to fraction form
    495,689.84/684,058.20 = 269,339.12/x
  3. Step 3: Cross multiply
    495,689.84x = 684,058.20 × 269,339.12
  4. Step 4: Simplify right side
    495,689.84x = 184,243,633,616.78
  5. Step 5: Solve for x
    x = 184,243,633,616.78/495,689.84
  6. Step 6: Final answer
    x = 371,691.37

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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.