Home / 1,179,978.04-1,628,366.70-643,434.04

Finding the Fourth Proportional to 1,179,978.04, 1,628,366.70 and 643,434.04

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Solution

The fourth proportional to 1,179,978.04, 1,628,366.70 and 643,434.04 is: 887,937.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,978.04 : 1,628,366.70 = 643,434.04 : x
  2. Step 2: Convert to fraction form
    1,179,978.04/1,628,366.70 = 643,434.04/x
  3. Step 3: Cross multiply
    1,179,978.04x = 1,628,366.70 × 643,434.04
  4. Step 4: Simplify right side
    1,179,978.04x = 1,047,746,564,382.47
  5. Step 5: Solve for x
    x = 1,047,746,564,382.47/1,179,978.04
  6. Step 6: Final answer
    x = 887,937.34

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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.