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Finding the Fourth Proportional to 559,787.38, 772,263.30 and 355,729.04

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Solution

The fourth proportional to 559,787.38, 772,263.30 and 355,729.04 is: 490,751.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,787.38 : 772,263.30 = 355,729.04 : x
  2. Step 2: Convert to fraction form
    559,787.38/772,263.30 = 355,729.04/x
  3. Step 3: Cross multiply
    559,787.38x = 772,263.30 × 355,729.04
  4. Step 4: Simplify right side
    559,787.38x = 274,716,478,474.92
  5. Step 5: Solve for x
    x = 274,716,478,474.92/559,787.38
  6. Step 6: Final answer
    x = 490,751.47

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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.