Home / 875,285.90-1,207,859.55-493,391.96

Finding the Fourth Proportional to 875,285.90, 1,207,859.55 and 493,391.96

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Solution

The fourth proportional to 875,285.90, 1,207,859.55 and 493,391.96 is: 680,861.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,285.90 : 1,207,859.55 = 493,391.96 : x
  2. Step 2: Convert to fraction form
    875,285.90/1,207,859.55 = 493,391.96/x
  3. Step 3: Cross multiply
    875,285.90x = 1,207,859.55 × 493,391.96
  4. Step 4: Simplify right side
    875,285.90x = 595,948,190,779.22
  5. Step 5: Solve for x
    x = 595,948,190,779.22/875,285.90
  6. Step 6: Final answer
    x = 680,861.18

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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.