Home / 658,811.43-988,206.75-209,525.81

Finding the Fourth Proportional to 658,811.43, 988,206.75 and 209,525.81

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Solution

The fourth proportional to 658,811.43, 988,206.75 and 209,525.81 is: 314,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,811.43 : 988,206.75 = 209,525.81 : x
  2. Step 2: Convert to fraction form
    658,811.43/988,206.75 = 209,525.81/x
  3. Step 3: Cross multiply
    658,811.43x = 988,206.75 × 209,525.81
  4. Step 4: Simplify right side
    658,811.43x = 207,054,814,800.18
  5. Step 5: Solve for x
    x = 207,054,814,800.18/658,811.43
  6. Step 6: Final answer
    x = 314,285.40

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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.