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Finding the Fourth Proportional to 571,009.60, 856,514.40 and 349,825.60

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Solution

The fourth proportional to 571,009.60, 856,514.40 and 349,825.60 is: 524,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,009.60 : 856,514.40 = 349,825.60 : x
  2. Step 2: Convert to fraction form
    571,009.60/856,514.40 = 349,825.60/x
  3. Step 3: Cross multiply
    571,009.60x = 856,514.40 × 349,825.60
  4. Step 4: Simplify right side
    571,009.60x = 299,630,663,888.64
  5. Step 5: Solve for x
    x = 299,630,663,888.64/571,009.60
  6. Step 6: Final answer
    x = 524,738.40

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Double scale
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Similar ratio
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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.