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Finding the Fourth Proportional to 704,913.60, 972,777.48 and 382,620.87

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Solution

The fourth proportional to 704,913.60, 972,777.48 and 382,620.87 is: 528,015.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,913.60 : 972,777.48 = 382,620.87 : x
  2. Step 2: Convert to fraction form
    704,913.60/972,777.48 = 382,620.87/x
  3. Step 3: Cross multiply
    704,913.60x = 972,777.48 × 382,620.87
  4. Step 4: Simplify right side
    704,913.60x = 372,204,965,714.01
  5. Step 5: Solve for x
    x = 372,204,965,714.01/704,913.60
  6. Step 6: Final answer
    x = 528,015.02

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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.