Home / 859,038.98-1,288,561.92-290,423.10

Finding the Fourth Proportional to 859,038.98, 1,288,561.92 and 290,423.10

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Solution

The fourth proportional to 859,038.98, 1,288,561.92 and 290,423.10 is: 435,635.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,038.98 : 1,288,561.92 = 290,423.10 : x
  2. Step 2: Convert to fraction form
    859,038.98/1,288,561.92 = 290,423.10/x
  3. Step 3: Cross multiply
    859,038.98x = 1,288,561.92 × 290,423.10
  4. Step 4: Simplify right side
    859,038.98x = 374,228,145,896.24
  5. Step 5: Solve for x
    x = 374,228,145,896.24/859,038.98
  6. Step 6: Final answer
    x = 435,635.81

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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.