Home / 1,289,347.77-1,934,085.89-490,691.21

Finding the Fourth Proportional to 1,289,347.77, 1,934,085.89 and 490,691.21

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Solution

The fourth proportional to 1,289,347.77, 1,934,085.89 and 490,691.21 is: 736,061.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,347.77 : 1,934,085.89 = 490,691.21 : x
  2. Step 2: Convert to fraction form
    1,289,347.77/1,934,085.89 = 490,691.21/x
  3. Step 3: Cross multiply
    1,289,347.77x = 1,934,085.89 × 490,691.21
  4. Step 4: Simplify right side
    1,289,347.77x = 949,038,945,608.03
  5. Step 5: Solve for x
    x = 949,038,945,608.03/1,289,347.77
  6. Step 6: Final answer
    x = 736,061.26

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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.