Home / 690,355.06-1,035,487.01-330,783.10

Finding the Fourth Proportional to 690,355.06, 1,035,487.01 and 330,783.10

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Solution

The fourth proportional to 690,355.06, 1,035,487.01 and 330,783.10 is: 496,152.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,355.06 : 1,035,487.01 = 330,783.10 : x
  2. Step 2: Convert to fraction form
    690,355.06/1,035,487.01 = 330,783.10/x
  3. Step 3: Cross multiply
    690,355.06x = 1,035,487.01 × 330,783.10
  4. Step 4: Simplify right side
    690,355.06x = 342,521,601,415.77
  5. Step 5: Solve for x
    x = 342,521,601,415.77/690,355.06
  6. Step 6: Final answer
    x = 496,152.81

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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.