Home / 915,981.96-1,374,097.68-316,782.30

Finding the Fourth Proportional to 915,981.96, 1,374,097.68 and 316,782.30

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Solution

The fourth proportional to 915,981.96, 1,374,097.68 and 316,782.30 is: 475,216.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,981.96 : 1,374,097.68 = 316,782.30 : x
  2. Step 2: Convert to fraction form
    915,981.96/1,374,097.68 = 316,782.30/x
  3. Step 3: Cross multiply
    915,981.96x = 1,374,097.68 × 316,782.30
  4. Step 4: Simplify right side
    915,981.96x = 435,289,823,495.06
  5. Step 5: Solve for x
    x = 435,289,823,495.06/915,981.96
  6. Step 6: Final answer
    x = 475,216.59

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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.