Home / 658,904.37-988,429.23-209,520.15

Finding the Fourth Proportional to 658,904.37, 988,429.23 and 209,520.15

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Solution

The fourth proportional to 658,904.37, 988,429.23 and 209,520.15 is: 314,303.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,904.37 : 988,429.23 = 209,520.15 : x
  2. Step 2: Convert to fraction form
    658,904.37/988,429.23 = 209,520.15/x
  3. Step 3: Cross multiply
    658,904.37x = 988,429.23 × 209,520.15
  4. Step 4: Simplify right side
    658,904.37x = 207,095,840,533.99
  5. Step 5: Solve for x
    x = 207,095,840,533.99/658,904.37
  6. Step 6: Final answer
    x = 314,303.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.