Home / 915,971.46-1,374,081.93-316,771.80

Finding the Fourth Proportional to 915,971.46, 1,374,081.93 and 316,771.80

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Solution

The fourth proportional to 915,971.46, 1,374,081.93 and 316,771.80 is: 475,200.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,971.46 : 1,374,081.93 = 316,771.80 : x
  2. Step 2: Convert to fraction form
    915,971.46/1,374,081.93 = 316,771.80/x
  3. Step 3: Cross multiply
    915,971.46x = 1,374,081.93 × 316,771.80
  4. Step 4: Simplify right side
    915,971.46x = 435,270,406,313.57
  5. Step 5: Solve for x
    x = 435,270,406,313.57/915,971.46
  6. Step 6: Final answer
    x = 475,200.84

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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.