Home / 1,289,242.66-1,933,864.53-490,339.66

Finding the Fourth Proportional to 1,289,242.66, 1,933,864.53 and 490,339.66

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Solution

The fourth proportional to 1,289,242.66, 1,933,864.53 and 490,339.66 is: 735,509.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,242.66 : 1,933,864.53 = 490,339.66 : x
  2. Step 2: Convert to fraction form
    1,289,242.66/1,933,864.53 = 490,339.66/x
  3. Step 3: Cross multiply
    1,289,242.66x = 1,933,864.53 × 490,339.66
  4. Step 4: Simplify right side
    1,289,242.66x = 948,250,476,126.26
  5. Step 5: Solve for x
    x = 948,250,476,126.26/1,289,242.66
  6. Step 6: Final answer
    x = 735,509.70

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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.