Home / 379,580.29-569,176.75-126,769.69

Finding the Fourth Proportional to 379,580.29, 569,176.75 and 126,769.69

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Solution

The fourth proportional to 379,580.29, 569,176.75 and 126,769.69 is: 190,089.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,580.29 : 569,176.75 = 126,769.69 : x
  2. Step 2: Convert to fraction form
    379,580.29/569,176.75 = 126,769.69/x
  3. Step 3: Cross multiply
    379,580.29x = 569,176.75 × 126,769.69
  4. Step 4: Simplify right side
    379,580.29x = 72,154,360,152.71
  5. Step 5: Solve for x
    x = 72,154,360,152.71/379,580.29
  6. Step 6: Final answer
    x = 190,089.85

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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.