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Finding the Fourth Proportional to 612,085.35, 857,805.24 and 612,085.35

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Solution

The fourth proportional to 612,085.35, 857,805.24 and 612,085.35 is: 857,805.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,085.35 : 857,805.24 = 612,085.35 : x
  2. Step 2: Convert to fraction form
    612,085.35/857,805.24 = 612,085.35/x
  3. Step 3: Cross multiply
    612,085.35x = 857,805.24 × 612,085.35
  4. Step 4: Simplify right side
    612,085.35x = 525,050,020,557.23
  5. Step 5: Solve for x
    x = 525,050,020,557.23/612,085.35
  6. Step 6: Final answer
    x = 857,805.24

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.