Home / 778,982.40-1,168,934.40-280,281.60

Finding the Fourth Proportional to 778,982.40, 1,168,934.40 and 280,281.60

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Solution

The fourth proportional to 778,982.40, 1,168,934.40 and 280,281.60 is: 420,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,982.40 : 1,168,934.40 = 280,281.60 : x
  2. Step 2: Convert to fraction form
    778,982.40/1,168,934.40 = 280,281.60/x
  3. Step 3: Cross multiply
    778,982.40x = 1,168,934.40 × 280,281.60
  4. Step 4: Simplify right side
    778,982.40x = 327,630,803,927.04
  5. Step 5: Solve for x
    x = 327,630,803,927.04/778,982.40
  6. Step 6: Final answer
    x = 420,588.20

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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.