Home / 389,370.49-583,708.59-209,552.45

Finding the Fourth Proportional to 389,370.49, 583,708.59 and 209,552.45

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Solution

The fourth proportional to 389,370.49, 583,708.59 and 209,552.45 is: 314,141.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,370.49 : 583,708.59 = 209,552.45 : x
  2. Step 2: Convert to fraction form
    389,370.49/583,708.59 = 209,552.45/x
  3. Step 3: Cross multiply
    389,370.49x = 583,708.59 × 209,552.45
  4. Step 4: Simplify right side
    389,370.49x = 122,317,562,701.89
  5. Step 5: Solve for x
    x = 122,317,562,701.89/389,370.49
  6. Step 6: Final answer
    x = 314,141.84

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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.