Home / 626,345.15-864,353.72-371,905.79

Finding the Fourth Proportional to 626,345.15, 864,353.72 and 371,905.79

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Solution

The fourth proportional to 626,345.15, 864,353.72 and 371,905.79 is: 513,228.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,345.15 : 864,353.72 = 371,905.79 : x
  2. Step 2: Convert to fraction form
    626,345.15/864,353.72 = 371,905.79/x
  3. Step 3: Cross multiply
    626,345.15x = 864,353.72 × 371,905.79
  4. Step 4: Simplify right side
    626,345.15x = 321,458,151,216.51
  5. Step 5: Solve for x
    x = 321,458,151,216.51/626,345.15
  6. Step 6: Final answer
    x = 513,228.45

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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.