Home / 677,927.60-1,017,895.80-379,005.20

Finding the Fourth Proportional to 677,927.60, 1,017,895.80 and 379,005.20

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Solution

The fourth proportional to 677,927.60, 1,017,895.80 and 379,005.20 is: 569,069.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,927.60 : 1,017,895.80 = 379,005.20 : x
  2. Step 2: Convert to fraction form
    677,927.60/1,017,895.80 = 379,005.20/x
  3. Step 3: Cross multiply
    677,927.60x = 1,017,895.80 × 379,005.20
  4. Step 4: Simplify right side
    677,927.60x = 385,787,801,258.16
  5. Step 5: Solve for x
    x = 385,787,801,258.16/677,927.60
  6. Step 6: Final answer
    x = 569,069.32

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1.5x scale

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.