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Finding the Fourth Proportional to 583,687.29, 805,613.71 and 368,690.61

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Solution

The fourth proportional to 583,687.29, 805,613.71 and 368,690.61 is: 508,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,687.29 : 805,613.71 = 368,690.61 : x
  2. Step 2: Convert to fraction form
    583,687.29/805,613.71 = 368,690.61/x
  3. Step 3: Cross multiply
    583,687.29x = 805,613.71 × 368,690.61
  4. Step 4: Simplify right side
    583,687.29x = 297,022,208,320.81
  5. Step 5: Solve for x
    x = 297,022,208,320.81/583,687.29
  6. Step 6: Final answer
    x = 508,872.15

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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.