Home / 885,442.40-1,328,336.40-380,002.40

Finding the Fourth Proportional to 885,442.40, 1,328,336.40 and 380,002.40

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Solution

The fourth proportional to 885,442.40, 1,328,336.40 and 380,002.40 is: 570,077.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,442.40 : 1,328,336.40 = 380,002.40 : x
  2. Step 2: Convert to fraction form
    885,442.40/1,328,336.40 = 380,002.40/x
  3. Step 3: Cross multiply
    885,442.40x = 1,328,336.40 × 380,002.40
  4. Step 4: Simplify right side
    885,442.40x = 504,771,020,007.36
  5. Step 5: Solve for x
    x = 504,771,020,007.36/885,442.40
  6. Step 6: Final answer
    x = 570,077.76

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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.