Home / 1,186,934.22-1,637,967.02-643,083.81

Finding the Fourth Proportional to 1,186,934.22, 1,637,967.02 and 643,083.81

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Solution

The fourth proportional to 1,186,934.22, 1,637,967.02 and 643,083.81 is: 887,454.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,934.22 : 1,637,967.02 = 643,083.81 : x
  2. Step 2: Convert to fraction form
    1,186,934.22/1,637,967.02 = 643,083.81/x
  3. Step 3: Cross multiply
    1,186,934.22x = 1,637,967.02 × 643,083.81
  4. Step 4: Simplify right side
    1,186,934.22x = 1,053,350,068,660.53
  5. Step 5: Solve for x
    x = 1,053,350,068,660.53/1,186,934.22
  6. Step 6: Final answer
    x = 887,454.46

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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.