Home / 762,603.39-1,143,225.51-289,620.90

Finding the Fourth Proportional to 762,603.39, 1,143,225.51 and 289,620.90

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Solution

The fourth proportional to 762,603.39, 1,143,225.51 and 289,620.90 is: 434,173.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,603.39 : 1,143,225.51 = 289,620.90 : x
  2. Step 2: Convert to fraction form
    762,603.39/1,143,225.51 = 289,620.90/x
  3. Step 3: Cross multiply
    762,603.39x = 1,143,225.51 × 289,620.90
  4. Step 4: Simplify right side
    762,603.39x = 331,102,001,109.16
  5. Step 5: Solve for x
    x = 331,102,001,109.16/762,603.39
  6. Step 6: Final answer
    x = 434,173.26

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1.5x scale

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.