Home / 738,390.30-1,107,527.85-289,023.90

Finding the Fourth Proportional to 738,390.30, 1,107,527.85 and 289,023.90

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Solution

The fourth proportional to 738,390.30, 1,107,527.85 and 289,023.90 is: 433,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,390.30 : 1,107,527.85 = 289,023.90 : x
  2. Step 2: Convert to fraction form
    738,390.30/1,107,527.85 = 289,023.90/x
  3. Step 3: Cross multiply
    738,390.30x = 1,107,527.85 × 289,023.90
  4. Step 4: Simplify right side
    738,390.30x = 320,102,018,565.62
  5. Step 5: Solve for x
    x = 320,102,018,565.62/738,390.30
  6. Step 6: Final answer
    x = 433,513.30

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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.