Home / 780,675.12-1,077,281.78-436,539.42

Finding the Fourth Proportional to 780,675.12, 1,077,281.78 and 436,539.42

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Solution

The fourth proportional to 780,675.12, 1,077,281.78 and 436,539.42 is: 602,396.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,675.12 : 1,077,281.78 = 436,539.42 : x
  2. Step 2: Convert to fraction form
    780,675.12/1,077,281.78 = 436,539.42/x
  3. Step 3: Cross multiply
    780,675.12x = 1,077,281.78 × 436,539.42
  4. Step 4: Simplify right side
    780,675.12x = 470,275,963,417.77
  5. Step 5: Solve for x
    x = 470,275,963,417.77/780,675.12
  6. Step 6: Final answer
    x = 602,396.50

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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.