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Finding the Fourth Proportional to 620,212.04, 930,382.40 and 170,932.96

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Solution

The fourth proportional to 620,212.04, 930,382.40 and 170,932.96 is: 256,417.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,212.04 : 930,382.40 = 170,932.96 : x
  2. Step 2: Convert to fraction form
    620,212.04/930,382.40 = 170,932.96/x
  3. Step 3: Cross multiply
    620,212.04x = 930,382.40 × 170,932.96
  4. Step 4: Simplify right side
    620,212.04x = 159,033,017,563.90
  5. Step 5: Solve for x
    x = 159,033,017,563.90/620,212.04
  6. Step 6: Final answer
    x = 256,417.17

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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.