Home / 626,309.19-864,303.80-339,828.57

Finding the Fourth Proportional to 626,309.19, 864,303.80 and 339,828.57

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Solution

The fourth proportional to 626,309.19, 864,303.80 and 339,828.57 is: 468,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,309.19 : 864,303.80 = 339,828.57 : x
  2. Step 2: Convert to fraction form
    626,309.19/864,303.80 = 339,828.57/x
  3. Step 3: Cross multiply
    626,309.19x = 864,303.80 × 339,828.57
  4. Step 4: Simplify right side
    626,309.19x = 293,715,122,700.42
  5. Step 5: Solve for x
    x = 293,715,122,700.42/626,309.19
  6. Step 6: Final answer
    x = 468,961.86

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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.