Home / 754,140.84-1,040,938.71-432,065.40

Finding the Fourth Proportional to 754,140.84, 1,040,938.71 and 432,065.40

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Solution

The fourth proportional to 754,140.84, 1,040,938.71 and 432,065.40 is: 596,378.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,140.84 : 1,040,938.71 = 432,065.40 : x
  2. Step 2: Convert to fraction form
    754,140.84/1,040,938.71 = 432,065.40/x
  3. Step 3: Cross multiply
    754,140.84x = 1,040,938.71 × 432,065.40
  4. Step 4: Simplify right side
    754,140.84x = 449,753,600,111.63
  5. Step 5: Solve for x
    x = 449,753,600,111.63/754,140.84
  6. Step 6: Final answer
    x = 596,378.79

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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.