Home / 780,842.25-1,077,617.22-436,710.20

Finding the Fourth Proportional to 780,842.25, 1,077,617.22 and 436,710.20

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Solution

The fourth proportional to 780,842.25, 1,077,617.22 and 436,710.20 is: 602,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,842.25 : 1,077,617.22 = 436,710.20 : x
  2. Step 2: Convert to fraction form
    780,842.25/1,077,617.22 = 436,710.20/x
  3. Step 3: Cross multiply
    780,842.25x = 1,077,617.22 × 436,710.20
  4. Step 4: Simplify right side
    780,842.25x = 470,606,426,281.56
  5. Step 5: Solve for x
    x = 470,606,426,281.56/780,842.25
  6. Step 6: Final answer
    x = 602,690.78

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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.