Home / 1,278,657.59-1,918,303.49-380,097.65

Finding the Fourth Proportional to 1,278,657.59, 1,918,303.49 and 380,097.65

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Solution

The fourth proportional to 1,278,657.59, 1,918,303.49 and 380,097.65 is: 570,240.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,657.59 : 1,918,303.49 = 380,097.65 : x
  2. Step 2: Convert to fraction form
    1,278,657.59/1,918,303.49 = 380,097.65/x
  3. Step 3: Cross multiply
    1,278,657.59x = 1,918,303.49 × 380,097.65
  4. Step 4: Simplify right side
    1,278,657.59x = 729,142,637,043.79
  5. Step 5: Solve for x
    x = 729,142,637,043.79/1,278,657.59
  6. Step 6: Final answer
    x = 570,240.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.