Home / 857,247.56-1,286,085.16-605,020.72

Finding the Fourth Proportional to 857,247.56, 1,286,085.16 and 605,020.72

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Solution

The fourth proportional to 857,247.56, 1,286,085.16 and 605,020.72 is: 907,681.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,247.56 : 1,286,085.16 = 605,020.72 : x
  2. Step 2: Convert to fraction form
    857,247.56/1,286,085.16 = 605,020.72/x
  3. Step 3: Cross multiply
    857,247.56x = 1,286,085.16 × 605,020.72
  4. Step 4: Simplify right side
    857,247.56x = 778,108,169,484.52
  5. Step 5: Solve for x
    x = 778,108,169,484.52/857,247.56
  6. Step 6: Final answer
    x = 907,681.99

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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.