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Finding the Fourth Proportional to 675,075.33, 931,264.29 and 445,390.52

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Solution

The fourth proportional to 675,075.33, 931,264.29 and 445,390.52 is: 614,414.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,075.33 : 931,264.29 = 445,390.52 : x
  2. Step 2: Convert to fraction form
    675,075.33/931,264.29 = 445,390.52/x
  3. Step 3: Cross multiply
    675,075.33x = 931,264.29 × 445,390.52
  4. Step 4: Simplify right side
    675,075.33x = 414,776,281,724.21
  5. Step 5: Solve for x
    x = 414,776,281,724.21/675,075.33
  6. Step 6: Final answer
    x = 614,414.81

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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.