Home / 910,459.80-1,365,560.10-311,448.60

Finding the Fourth Proportional to 910,459.80, 1,365,560.10 and 311,448.60

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Solution

The fourth proportional to 910,459.80, 1,365,560.10 and 311,448.60 is: 467,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,459.80 : 1,365,560.10 = 311,448.60 : x
  2. Step 2: Convert to fraction form
    910,459.80/1,365,560.10 = 311,448.60/x
  3. Step 3: Cross multiply
    910,459.80x = 1,365,560.10 × 311,448.60
  4. Step 4: Simplify right side
    910,459.80x = 425,301,781,360.86
  5. Step 5: Solve for x
    x = 425,301,781,360.86/910,459.80
  6. Step 6: Final answer
    x = 467,128.57

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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.