Home / 1,190,743.88-1,643,220.02-646,875.40

Finding the Fourth Proportional to 1,190,743.88, 1,643,220.02 and 646,875.40

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Solution

The fourth proportional to 1,190,743.88, 1,643,220.02 and 646,875.40 is: 892,684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,743.88 : 1,643,220.02 = 646,875.40 : x
  2. Step 2: Convert to fraction form
    1,190,743.88/1,643,220.02 = 646,875.40/x
  3. Step 3: Cross multiply
    1,190,743.88x = 1,643,220.02 × 646,875.40
  4. Step 4: Simplify right side
    1,190,743.88x = 1,062,958,607,725.51
  5. Step 5: Solve for x
    x = 1,062,958,607,725.51/1,190,743.88
  6. Step 6: Final answer
    x = 892,684.50

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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.