Home / 389,619.40-584,448.30-202,995.40

Finding the Fourth Proportional to 389,619.40, 584,448.30 and 202,995.40

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Solution

The fourth proportional to 389,619.40, 584,448.30 and 202,995.40 is: 304,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,619.40 : 584,448.30 = 202,995.40 : x
  2. Step 2: Convert to fraction form
    389,619.40/584,448.30 = 202,995.40/x
  3. Step 3: Cross multiply
    389,619.40x = 584,448.30 × 202,995.40
  4. Step 4: Simplify right side
    389,619.40x = 118,640,316,437.82
  5. Step 5: Solve for x
    x = 118,640,316,437.82/389,619.40
  6. Step 6: Final answer
    x = 304,503.10

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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.