Home / 1,389,482.15-1,917,686.73-800,667.02

Finding the Fourth Proportional to 1,389,482.15, 1,917,686.73 and 800,667.02

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Solution

The fourth proportional to 1,389,482.15, 1,917,686.73 and 800,667.02 is: 1,105,036.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,482.15 : 1,917,686.73 = 800,667.02 : x
  2. Step 2: Convert to fraction form
    1,389,482.15/1,917,686.73 = 800,667.02/x
  3. Step 3: Cross multiply
    1,389,482.15x = 1,917,686.73 × 800,667.02
  4. Step 4: Simplify right side
    1,389,482.15x = 1,535,428,509,814.21
  5. Step 5: Solve for x
    x = 1,535,428,509,814.21/1,389,482.15
  6. Step 6: Final answer
    x = 1,105,036.52

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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.