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Finding the Fourth Proportional to 471,483.78, 650,661.70 and 290,300.24

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Solution

The fourth proportional to 471,483.78, 650,661.70 and 290,300.24 is: 400,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,483.78 : 650,661.70 = 290,300.24 : x
  2. Step 2: Convert to fraction form
    471,483.78/650,661.70 = 290,300.24/x
  3. Step 3: Cross multiply
    471,483.78x = 650,661.70 × 290,300.24
  4. Step 4: Simplify right side
    471,483.78x = 188,887,247,668.81
  5. Step 5: Solve for x
    x = 188,887,247,668.81/471,483.78
  6. Step 6: Final answer
    x = 400,623.00

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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.