Home / 540,021.60-745,216.20-298,285.20

Finding the Fourth Proportional to 540,021.60, 745,216.20 and 298,285.20

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Solution

The fourth proportional to 540,021.60, 745,216.20 and 298,285.20 is: 411,626.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,021.60 : 745,216.20 = 298,285.20 : x
  2. Step 2: Convert to fraction form
    540,021.60/745,216.20 = 298,285.20/x
  3. Step 3: Cross multiply
    540,021.60x = 745,216.20 × 298,285.20
  4. Step 4: Simplify right side
    540,021.60x = 222,286,963,260.24
  5. Step 5: Solve for x
    x = 222,286,963,260.24/540,021.60
  6. Step 6: Final answer
    x = 411,626.06

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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.