Home / 909,564.48-1,364,515.20-310,492.80

Finding the Fourth Proportional to 909,564.48, 1,364,515.20 and 310,492.80

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Solution

The fourth proportional to 909,564.48, 1,364,515.20 and 310,492.80 is: 465,796.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,564.48 : 1,364,515.20 = 310,492.80 : x
  2. Step 2: Convert to fraction form
    909,564.48/1,364,515.20 = 310,492.80/x
  3. Step 3: Cross multiply
    909,564.48x = 1,364,515.20 × 310,492.80
  4. Step 4: Simplify right side
    909,564.48x = 423,672,145,090.56
  5. Step 5: Solve for x
    x = 423,672,145,090.56/909,564.48
  6. Step 6: Final answer
    x = 465,796.71

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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.