Home / 740,090.40-1,110,135.60-403,000.80

Finding the Fourth Proportional to 740,090.40, 1,110,135.60 and 403,000.80

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Solution

The fourth proportional to 740,090.40, 1,110,135.60 and 403,000.80 is: 604,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,090.40 : 1,110,135.60 = 403,000.80 : x
  2. Step 2: Convert to fraction form
    740,090.40/1,110,135.60 = 403,000.80/x
  3. Step 3: Cross multiply
    740,090.40x = 1,110,135.60 × 403,000.80
  4. Step 4: Simplify right side
    740,090.40x = 447,385,534,908.48
  5. Step 5: Solve for x
    x = 447,385,534,908.48/740,090.40
  6. Step 6: Final answer
    x = 604,501.20

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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.