Home / 1,368,705.78-1,888,186.14-885,426.80

Finding the Fourth Proportional to 1,368,705.78, 1,888,186.14 and 885,426.80

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Solution

The fourth proportional to 1,368,705.78, 1,888,186.14 and 885,426.80 is: 1,221,482.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,705.78 : 1,888,186.14 = 885,426.80 : x
  2. Step 2: Convert to fraction form
    1,368,705.78/1,888,186.14 = 885,426.80/x
  3. Step 3: Cross multiply
    1,368,705.78x = 1,888,186.14 × 885,426.80
  4. Step 4: Simplify right side
    1,368,705.78x = 1,671,850,602,303.62
  5. Step 5: Solve for x
    x = 1,671,850,602,303.62/1,368,705.78
  6. Step 6: Final answer
    x = 1,221,482.82

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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.