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Finding the Fourth Proportional to 495,775.78, 684,170.54 and 269,421.28

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Solution

The fourth proportional to 495,775.78, 684,170.54 and 269,421.28 is: 371,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,775.78 : 684,170.54 = 269,421.28 : x
  2. Step 2: Convert to fraction form
    495,775.78/684,170.54 = 269,421.28/x
  3. Step 3: Cross multiply
    495,775.78x = 684,170.54 × 269,421.28
  4. Step 4: Simplify right side
    495,775.78x = 184,330,102,625.09
  5. Step 5: Solve for x
    x = 184,330,102,625.09/495,775.78
  6. Step 6: Final answer
    x = 371,801.35

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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.