Home / 803,942.61-1,109,443.86-441,403.62

Finding the Fourth Proportional to 803,942.61, 1,109,443.86 and 441,403.62

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Solution

The fourth proportional to 803,942.61, 1,109,443.86 and 441,403.62 is: 609,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,942.61 : 1,109,443.86 = 441,403.62 : x
  2. Step 2: Convert to fraction form
    803,942.61/1,109,443.86 = 441,403.62/x
  3. Step 3: Cross multiply
    803,942.61x = 1,109,443.86 × 441,403.62
  4. Step 4: Simplify right side
    803,942.61x = 489,712,535,990.77
  5. Step 5: Solve for x
    x = 489,712,535,990.77/803,942.61
  6. Step 6: Final answer
    x = 609,138.67

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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.