Home / 1,657,363.89-2,287,185.80-978,300.39

Finding the Fourth Proportional to 1,657,363.89, 2,287,185.80 and 978,300.39

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Solution

The fourth proportional to 1,657,363.89, 2,287,185.80 and 978,300.39 is: 1,350,068.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,363.89 : 2,287,185.80 = 978,300.39 : x
  2. Step 2: Convert to fraction form
    1,657,363.89/2,287,185.80 = 978,300.39/x
  3. Step 3: Cross multiply
    1,657,363.89x = 2,287,185.80 × 978,300.39
  4. Step 4: Simplify right side
    1,657,363.89x = 2,237,554,760,142.46
  5. Step 5: Solve for x
    x = 2,237,554,760,142.46/1,657,363.89
  6. Step 6: Final answer
    x = 1,350,068.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.