Home / 1,178,667.12-1,626,133.96-771,001.68

Finding the Fourth Proportional to 1,178,667.12, 1,626,133.96 and 771,001.68

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Solution

The fourth proportional to 1,178,667.12, 1,626,133.96 and 771,001.68 is: 1,063,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,667.12 : 1,626,133.96 = 771,001.68 : x
  2. Step 2: Convert to fraction form
    1,178,667.12/1,626,133.96 = 771,001.68/x
  3. Step 3: Cross multiply
    1,178,667.12x = 1,626,133.96 × 771,001.68
  4. Step 4: Simplify right side
    1,178,667.12x = 1,253,752,015,065.05
  5. Step 5: Solve for x
    x = 1,253,752,015,065.05/1,178,667.12
  6. Step 6: Final answer
    x = 1,063,703.22

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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.