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Finding the Fourth Proportional to 704,697.45, 972,485.03 and 382,407.54

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Solution

The fourth proportional to 704,697.45, 972,485.03 and 382,407.54 is: 527,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,697.45 : 972,485.03 = 382,407.54 : x
  2. Step 2: Convert to fraction form
    704,697.45/972,485.03 = 382,407.54/x
  3. Step 3: Cross multiply
    704,697.45x = 972,485.03 × 382,407.54
  4. Step 4: Simplify right side
    704,697.45x = 371,885,608,009.13
  5. Step 5: Solve for x
    x = 371,885,608,009.13/704,697.45
  6. Step 6: Final answer
    x = 527,723.79

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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.