Home / 1,289,347.89-1,934,086.08-490,691.34

Finding the Fourth Proportional to 1,289,347.89, 1,934,086.08 and 490,691.34

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Solution

The fourth proportional to 1,289,347.89, 1,934,086.08 and 490,691.34 is: 736,061.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,347.89 : 1,934,086.08 = 490,691.34 : x
  2. Step 2: Convert to fraction form
    1,289,347.89/1,934,086.08 = 490,691.34/x
  3. Step 3: Cross multiply
    1,289,347.89x = 1,934,086.08 × 490,691.34
  4. Step 4: Simplify right side
    1,289,347.89x = 949,039,283,017.72
  5. Step 5: Solve for x
    x = 949,039,283,017.72/1,289,347.89
  6. Step 6: Final answer
    x = 736,061.45

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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.