Home / 1,780,464.81-2,670,700.55-432,628.55

Finding the Fourth Proportional to 1,780,464.81, 2,670,700.55 and 432,628.55

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Solution

The fourth proportional to 1,780,464.81, 2,670,700.55 and 432,628.55 is: 648,943.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,464.81 : 2,670,700.55 = 432,628.55 : x
  2. Step 2: Convert to fraction form
    1,780,464.81/2,670,700.55 = 432,628.55/x
  3. Step 3: Cross multiply
    1,780,464.81x = 2,670,700.55 × 432,628.55
  4. Step 4: Simplify right side
    1,780,464.81x = 1,155,421,290,914.06
  5. Step 5: Solve for x
    x = 1,155,421,290,914.06/1,780,464.81
  6. Step 6: Final answer
    x = 648,943.63

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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.