Home / 740,352.93-1,021,682.43-400,818.75

Finding the Fourth Proportional to 740,352.93, 1,021,682.43 and 400,818.75

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Solution

The fourth proportional to 740,352.93, 1,021,682.43 and 400,818.75 is: 553,127.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,352.93 : 1,021,682.43 = 400,818.75 : x
  2. Step 2: Convert to fraction form
    740,352.93/1,021,682.43 = 400,818.75/x
  3. Step 3: Cross multiply
    740,352.93x = 1,021,682.43 × 400,818.75
  4. Step 4: Simplify right side
    740,352.93x = 409,509,474,489.56
  5. Step 5: Solve for x
    x = 409,509,474,489.56/740,352.93
  6. Step 6: Final answer
    x = 553,127.38

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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.