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Finding the Fourth Proportional to 620,981.29, 856,828.43 and 362,808.33

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Solution

The fourth proportional to 620,981.29, 856,828.43 and 362,808.33 is: 500,602.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,981.29 : 856,828.43 = 362,808.33 : x
  2. Step 2: Convert to fraction form
    620,981.29/856,828.43 = 362,808.33/x
  3. Step 3: Cross multiply
    620,981.29x = 856,828.43 × 362,808.33
  4. Step 4: Simplify right side
    620,981.29x = 310,864,485,686.64
  5. Step 5: Solve for x
    x = 310,864,485,686.64/620,981.29
  6. Step 6: Final answer
    x = 500,602.02

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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.