Home / 762,690.63-1,143,587.37-289,409.25

Finding the Fourth Proportional to 762,690.63, 1,143,587.37 and 289,409.25

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Solution

The fourth proportional to 762,690.63, 1,143,587.37 and 289,409.25 is: 433,943.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,690.63 : 1,143,587.37 = 289,409.25 : x
  2. Step 2: Convert to fraction form
    762,690.63/1,143,587.37 = 289,409.25/x
  3. Step 3: Cross multiply
    762,690.63x = 1,143,587.37 × 289,409.25
  4. Step 4: Simplify right side
    762,690.63x = 330,964,763,061.17
  5. Step 5: Solve for x
    x = 330,964,763,061.17/762,690.63
  6. Step 6: Final answer
    x = 433,943.66

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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.