Home / 1,386,980.77-1,914,027.21-775,133.10

Finding the Fourth Proportional to 1,386,980.77, 1,914,027.21 and 775,133.10

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Solution

The fourth proportional to 1,386,980.77, 1,914,027.21 and 775,133.10 is: 1,069,680.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,980.77 : 1,914,027.21 = 775,133.10 : x
  2. Step 2: Convert to fraction form
    1,386,980.77/1,914,027.21 = 775,133.10/x
  3. Step 3: Cross multiply
    1,386,980.77x = 1,914,027.21 × 775,133.10
  4. Step 4: Simplify right side
    1,386,980.77x = 1,483,625,844,771.65
  5. Step 5: Solve for x
    x = 1,483,625,844,771.65/1,386,980.77
  6. Step 6: Final answer
    x = 1,069,680.18

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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.