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Finding the Fourth Proportional to 612,078.23, 857,795.27 and 612,078.23

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Solution

The fourth proportional to 612,078.23, 857,795.27 and 612,078.23 is: 857,795.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,078.23 : 857,795.27 = 612,078.23 : x
  2. Step 2: Convert to fraction form
    612,078.23/857,795.27 = 612,078.23/x
  3. Step 3: Cross multiply
    612,078.23x = 857,795.27 × 612,078.23
  4. Step 4: Simplify right side
    612,078.23x = 525,037,803,214.61
  5. Step 5: Solve for x
    x = 525,037,803,214.61/612,078.23
  6. Step 6: Final answer
    x = 857,795.27

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1.5x scale

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.