Home / 1,657,366.71-2,287,189.67-978,303.21

Finding the Fourth Proportional to 1,657,366.71, 2,287,189.67 and 978,303.21

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Solution

The fourth proportional to 1,657,366.71, 2,287,189.67 and 978,303.21 is: 1,350,072.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,366.71 : 2,287,189.67 = 978,303.21 : x
  2. Step 2: Convert to fraction form
    1,657,366.71/2,287,189.67 = 978,303.21/x
  3. Step 3: Cross multiply
    1,657,366.71x = 2,287,189.67 × 978,303.21
  4. Step 4: Simplify right side
    1,657,366.71x = 2,237,564,996,039.84
  5. Step 5: Solve for x
    x = 2,237,564,996,039.84/1,657,366.71
  6. Step 6: Final answer
    x = 1,350,072.37

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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.