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Finding the Fourth Proportional to 674,351.40, 930,669.30 and 368,474.28

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Solution

The fourth proportional to 674,351.40, 930,669.30 and 368,474.28 is: 508,529.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,351.40 : 930,669.30 = 368,474.28 : x
  2. Step 2: Convert to fraction form
    674,351.40/930,669.30 = 368,474.28/x
  3. Step 3: Cross multiply
    674,351.40x = 930,669.30 × 368,474.28
  4. Step 4: Simplify right side
    674,351.40x = 342,927,700,235.60
  5. Step 5: Solve for x
    x = 342,927,700,235.60/674,351.40
  6. Step 6: Final answer
    x = 508,529.68

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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.