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Finding the Fourth Proportional to 620,610.32, 856,528.58 and 348,699.25

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Solution

The fourth proportional to 620,610.32, 856,528.58 and 348,699.25 is: 481,253.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,610.32 : 856,528.58 = 348,699.25 : x
  2. Step 2: Convert to fraction form
    620,610.32/856,528.58 = 348,699.25/x
  3. Step 3: Cross multiply
    620,610.32x = 856,528.58 × 348,699.25
  4. Step 4: Simplify right side
    620,610.32x = 298,670,868,612.57
  5. Step 5: Solve for x
    x = 298,670,868,612.57/620,610.32
  6. Step 6: Final answer
    x = 481,253.47

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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.