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Finding the Fourth Proportional to 495,180.94, 683,352.49 and 291,240.46

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Solution

The fourth proportional to 495,180.94, 683,352.49 and 291,240.46 is: 401,913.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,180.94 : 683,352.49 = 291,240.46 : x
  2. Step 2: Convert to fraction form
    495,180.94/683,352.49 = 291,240.46/x
  3. Step 3: Cross multiply
    495,180.94x = 683,352.49 × 291,240.46
  4. Step 4: Simplify right side
    495,180.94x = 199,019,892,549.47
  5. Step 5: Solve for x
    x = 199,019,892,549.47/495,180.94
  6. Step 6: Final answer
    x = 401,913.47

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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.