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Finding the Fourth Proportional to 583,315.75, 804,975.75 and 315,043.75

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Solution

The fourth proportional to 583,315.75, 804,975.75 and 315,043.75 is: 434,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,315.75 : 804,975.75 = 315,043.75 : x
  2. Step 2: Convert to fraction form
    583,315.75/804,975.75 = 315,043.75/x
  3. Step 3: Cross multiply
    583,315.75x = 804,975.75 × 315,043.75
  4. Step 4: Simplify right side
    583,315.75x = 253,602,578,939.06
  5. Step 5: Solve for x
    x = 253,602,578,939.06/583,315.75
  6. Step 6: Final answer
    x = 434,760.38

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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.