Home / 1,145,989.40-1,717,015.80-545,657.90

Finding the Fourth Proportional to 1,145,989.40, 1,717,015.80 and 545,657.90

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Solution

The fourth proportional to 1,145,989.40, 1,717,015.80 and 545,657.90 is: 817,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,989.40 : 1,717,015.80 = 545,657.90 : x
  2. Step 2: Convert to fraction form
    1,145,989.40/1,717,015.80 = 545,657.90/x
  3. Step 3: Cross multiply
    1,145,989.40x = 1,717,015.80 × 545,657.90
  4. Step 4: Simplify right side
    1,145,989.40x = 936,903,235,694.82
  5. Step 5: Solve for x
    x = 936,903,235,694.82/1,145,989.40
  6. Step 6: Final answer
    x = 817,549.65

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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.