Home / 740,325.69-1,021,718.39-449,870.22

Finding the Fourth Proportional to 740,325.69, 1,021,718.39 and 449,870.22

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Solution

The fourth proportional to 740,325.69, 1,021,718.39 and 449,870.22 is: 620,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,325.69 : 1,021,718.39 = 449,870.22 : x
  2. Step 2: Convert to fraction form
    740,325.69/1,021,718.39 = 449,870.22/x
  3. Step 3: Cross multiply
    740,325.69x = 1,021,718.39 × 449,870.22
  4. Step 4: Simplify right side
    740,325.69x = 459,640,674,638.00
  5. Step 5: Solve for x
    x = 459,640,674,638.00/740,325.69
  6. Step 6: Final answer
    x = 620,862.79

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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.