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Finding the Fourth Proportional to 620,235.52, 855,925.02 and 348,303.64

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Solution

The fourth proportional to 620,235.52, 855,925.02 and 348,303.64 is: 480,659.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,235.52 : 855,925.02 = 348,303.64 : x
  2. Step 2: Convert to fraction form
    620,235.52/855,925.02 = 348,303.64/x
  3. Step 3: Cross multiply
    620,235.52x = 855,925.02 × 348,303.64
  4. Step 4: Simplify right side
    620,235.52x = 298,121,800,033.07
  5. Step 5: Solve for x
    x = 298,121,800,033.07/620,235.52
  6. Step 6: Final answer
    x = 480,659.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.