Home / 857,952.63-1,286,938.13-258,919.16

Finding the Fourth Proportional to 857,952.63, 1,286,938.13 and 258,919.16

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Solution

The fourth proportional to 857,952.63, 1,286,938.13 and 258,919.16 is: 388,381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,952.63 : 1,286,938.13 = 258,919.16 : x
  2. Step 2: Convert to fraction form
    857,952.63/1,286,938.13 = 258,919.16/x
  3. Step 3: Cross multiply
    857,952.63x = 1,286,938.13 × 258,919.16
  4. Step 4: Simplify right side
    857,952.63x = 333,212,931,862.28
  5. Step 5: Solve for x
    x = 333,212,931,862.28/857,952.63
  6. Step 6: Final answer
    x = 388,381.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.