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Finding the Fourth Proportional to 579,667.86, 869,752.08 and 313,615.67

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Solution

The fourth proportional to 579,667.86, 869,752.08 and 313,615.67 is: 470,558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,667.86 : 869,752.08 = 313,615.67 : x
  2. Step 2: Convert to fraction form
    579,667.86/869,752.08 = 313,615.67/x
  3. Step 3: Cross multiply
    579,667.86x = 869,752.08 × 313,615.67
  4. Step 4: Simplify right side
    579,667.86x = 272,767,876,954.33
  5. Step 5: Solve for x
    x = 272,767,876,954.33/579,667.86
  6. Step 6: Final answer
    x = 470,558.91

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1.5x scale

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.