Home / 389,431.40-583,916.70-202,807.40

Finding the Fourth Proportional to 389,431.40, 583,916.70 and 202,807.40

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Solution

The fourth proportional to 389,431.40, 583,916.70 and 202,807.40 is: 304,091.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,431.40 : 583,916.70 = 202,807.40 : x
  2. Step 2: Convert to fraction form
    389,431.40/583,916.70 = 202,807.40/x
  3. Step 3: Cross multiply
    389,431.40x = 583,916.70 × 202,807.40
  4. Step 4: Simplify right side
    389,431.40x = 118,422,627,743.58
  5. Step 5: Solve for x
    x = 118,422,627,743.58/389,431.40
  6. Step 6: Final answer
    x = 304,091.11

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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.