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Finding the Fourth Proportional to 671,784.96, 927,021.08 and 369,978.96

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Solution

The fourth proportional to 671,784.96, 927,021.08 and 369,978.96 is: 510,547.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,784.96 : 927,021.08 = 369,978.96 : x
  2. Step 2: Convert to fraction form
    671,784.96/927,021.08 = 369,978.96/x
  3. Step 3: Cross multiply
    671,784.96x = 927,021.08 × 369,978.96
  4. Step 4: Simplify right side
    671,784.96x = 342,978,295,076.48
  5. Step 5: Solve for x
    x = 342,978,295,076.48/671,784.96
  6. Step 6: Final answer
    x = 510,547.74

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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.