Home / 771,986.20-1,065,340.74-423,124.60

Finding the Fourth Proportional to 771,986.20, 1,065,340.74 and 423,124.60

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Solution

The fourth proportional to 771,986.20, 1,065,340.74 and 423,124.60 is: 583,911.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,986.20 : 1,065,340.74 = 423,124.60 : x
  2. Step 2: Convert to fraction form
    771,986.20/1,065,340.74 = 423,124.60/x
  3. Step 3: Cross multiply
    771,986.20x = 1,065,340.74 × 423,124.60
  4. Step 4: Simplify right side
    771,986.20x = 450,771,874,476.20
  5. Step 5: Solve for x
    x = 450,771,874,476.20/771,986.20
  6. Step 6: Final answer
    x = 583,911.83

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1.5x scale

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.