Home / 1,537,491.88-2,121,738.18-858,428.20

Finding the Fourth Proportional to 1,537,491.88, 2,121,738.18 and 858,428.20

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Solution

The fourth proportional to 1,537,491.88, 2,121,738.18 and 858,428.20 is: 1,184,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537,491.88 : 2,121,738.18 = 858,428.20 : x
  2. Step 2: Convert to fraction form
    1,537,491.88/2,121,738.18 = 858,428.20/x
  3. Step 3: Cross multiply
    1,537,491.88x = 2,121,738.18 × 858,428.20
  4. Step 4: Simplify right side
    1,537,491.88x = 1,821,359,886,728.68
  5. Step 5: Solve for x
    x = 1,821,359,886,728.68/1,537,491.88
  6. Step 6: Final answer
    x = 1,184,630.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.