Home / 390,281.22-582,124.19-378,468.18

Finding the Fourth Proportional to 390,281.22, 582,124.19 and 378,468.18

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Solution

The fourth proportional to 390,281.22, 582,124.19 and 378,468.18 is: 564,504.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,281.22 : 582,124.19 = 378,468.18 : x
  2. Step 2: Convert to fraction form
    390,281.22/582,124.19 = 378,468.18/x
  3. Step 3: Cross multiply
    390,281.22x = 582,124.19 × 378,468.18
  4. Step 4: Simplify right side
    390,281.22x = 220,315,480,830.93
  5. Step 5: Solve for x
    x = 220,315,480,830.93/390,281.22
  6. Step 6: Final answer
    x = 564,504.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.