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Finding the Fourth Proportional to 374,380.40, 561,570.60 and 370,443.80

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Solution

The fourth proportional to 374,380.40, 561,570.60 and 370,443.80 is: 555,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,380.40 : 561,570.60 = 370,443.80 : x
  2. Step 2: Convert to fraction form
    374,380.40/561,570.60 = 370,443.80/x
  3. Step 3: Cross multiply
    374,380.40x = 561,570.60 × 370,443.80
  4. Step 4: Simplify right side
    374,380.40x = 208,030,347,032.28
  5. Step 5: Solve for x
    x = 208,030,347,032.28/374,380.40
  6. Step 6: Final answer
    x = 555,665.70

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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.