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Finding the Fourth Proportional to 505,454.45, 697,807.31 and 344,545.92

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Solution

The fourth proportional to 505,454.45, 697,807.31 and 344,545.92 is: 475,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,454.45 : 697,807.31 = 344,545.92 : x
  2. Step 2: Convert to fraction form
    505,454.45/697,807.31 = 344,545.92/x
  3. Step 3: Cross multiply
    505,454.45x = 697,807.31 × 344,545.92
  4. Step 4: Simplify right side
    505,454.45x = 240,426,659,883.95
  5. Step 5: Solve for x
    x = 240,426,659,883.95/505,454.45
  6. Step 6: Final answer
    x = 475,664.35

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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.