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Finding the Fourth Proportional to 455,509.40, 683,264.10 and 366,935.90

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Solution

The fourth proportional to 455,509.40, 683,264.10 and 366,935.90 is: 550,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,509.40 : 683,264.10 = 366,935.90 : x
  2. Step 2: Convert to fraction form
    455,509.40/683,264.10 = 366,935.90/x
  3. Step 3: Cross multiply
    455,509.40x = 683,264.10 × 366,935.90
  4. Step 4: Simplify right side
    455,509.40x = 250,714,127,471.19
  5. Step 5: Solve for x
    x = 250,714,127,471.19/455,509.40
  6. Step 6: Final answer
    x = 550,403.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.