Home / 709,969.20-1,064,435.40-289,028.40

Finding the Fourth Proportional to 709,969.20, 1,064,435.40 and 289,028.40

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Solution

The fourth proportional to 709,969.20, 1,064,435.40 and 289,028.40 is: 433,331.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,969.20 : 1,064,435.40 = 289,028.40 : x
  2. Step 2: Convert to fraction form
    709,969.20/1,064,435.40 = 289,028.40/x
  3. Step 3: Cross multiply
    709,969.20x = 1,064,435.40 × 289,028.40
  4. Step 4: Simplify right side
    709,969.20x = 307,652,060,565.36
  5. Step 5: Solve for x
    x = 307,652,060,565.36/709,969.20
  6. Step 6: Final answer
    x = 433,331.56

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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.