Home / 1,133,270.47-1,563,970.67-643,274.33

Finding the Fourth Proportional to 1,133,270.47, 1,563,970.67 and 643,274.33

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Solution

The fourth proportional to 1,133,270.47, 1,563,970.67 and 643,274.33 is: 887,751.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,270.47 : 1,563,970.67 = 643,274.33 : x
  2. Step 2: Convert to fraction form
    1,133,270.47/1,563,970.67 = 643,274.33/x
  3. Step 3: Cross multiply
    1,133,270.47x = 1,563,970.67 × 643,274.33
  4. Step 4: Simplify right side
    1,133,270.47x = 1,006,062,186,866.50
  5. Step 5: Solve for x
    x = 1,006,062,186,866.50/1,133,270.47
  6. Step 6: Final answer
    x = 887,751.17

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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.