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Finding the Fourth Proportional to 554,739.60, 830,003.40 and 368,115.60

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Solution

The fourth proportional to 554,739.60, 830,003.40 and 368,115.60 is: 550,775.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,739.60 : 830,003.40 = 368,115.60 : x
  2. Step 2: Convert to fraction form
    554,739.60/830,003.40 = 368,115.60/x
  3. Step 3: Cross multiply
    554,739.60x = 830,003.40 × 368,115.60
  4. Step 4: Simplify right side
    554,739.60x = 305,537,199,593.04
  5. Step 5: Solve for x
    x = 305,537,199,593.04/554,739.60
  6. Step 6: Final answer
    x = 550,775.89

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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.