Home / 626,426.84-864,475.38-339,949.40

Finding the Fourth Proportional to 626,426.84, 864,475.38 and 339,949.40

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Solution

The fourth proportional to 626,426.84, 864,475.38 and 339,949.40 is: 469,133.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,426.84 : 864,475.38 = 339,949.40 : x
  2. Step 2: Convert to fraction form
    626,426.84/864,475.38 = 339,949.40/x
  3. Step 3: Cross multiply
    626,426.84x = 864,475.38 × 339,949.40
  4. Step 4: Simplify right side
    626,426.84x = 293,877,886,745.77
  5. Step 5: Solve for x
    x = 293,877,886,745.77/626,426.84
  6. Step 6: Final answer
    x = 469,133.61

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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.