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Finding the Fourth Proportional to 620,256.93, 855,951.32 and 348,336.28

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Solution

The fourth proportional to 620,256.93, 855,951.32 and 348,336.28 is: 480,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,256.93 : 855,951.32 = 348,336.28 : x
  2. Step 2: Convert to fraction form
    620,256.93/855,951.32 = 348,336.28/x
  3. Step 3: Cross multiply
    620,256.93x = 855,951.32 × 348,336.28
  4. Step 4: Simplify right side
    620,256.93x = 298,158,898,651.28
  5. Step 5: Solve for x
    x = 298,158,898,651.28/620,256.93
  6. Step 6: Final answer
    x = 480,702.25

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1.5x scale

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.