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Finding the Fourth Proportional to 626,529.84, 864,602.78 and 340,047.40

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Solution

The fourth proportional to 626,529.84, 864,602.78 and 340,047.40 is: 469,260.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,529.84 : 864,602.78 = 340,047.40 : x
  2. Step 2: Convert to fraction form
    626,529.84/864,602.78 = 340,047.40/x
  3. Step 3: Cross multiply
    626,529.84x = 864,602.78 × 340,047.40
  4. Step 4: Simplify right side
    626,529.84x = 294,005,927,371.77
  5. Step 5: Solve for x
    x = 294,005,927,371.77/626,529.84
  6. Step 6: Final answer
    x = 469,260.85

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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.