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Finding the Fourth Proportional to 647,418, 893,426.58 and 360,955.56

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Solution

The fourth proportional to 647,418, 893,426.58 and 360,955.56 is: 498,112.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,418 : 893,426.58 = 360,955.56 : x
  2. Step 2: Convert to fraction form
    647,418/893,426.58 = 360,955.56/x
  3. Step 3: Cross multiply
    647,418x = 893,426.58 × 360,955.56
  4. Step 4: Simplify right side
    647,418x = 322,487,291,502.79
  5. Step 5: Solve for x
    x = 322,487,291,502.79/647,418
  6. Step 6: Final answer
    x = 498,112.95

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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.