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Finding the Fourth Proportional to 612,110.40, 857,654.40 and 612,110.40

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Solution

The fourth proportional to 612,110.40, 857,654.40 and 612,110.40 is: 857,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,110.40 : 857,654.40 = 612,110.40 : x
  2. Step 2: Convert to fraction form
    612,110.40/857,654.40 = 612,110.40/x
  3. Step 3: Cross multiply
    612,110.40x = 857,654.40 × 612,110.40
  4. Step 4: Simplify right side
    612,110.40x = 524,979,177,845.76
  5. Step 5: Solve for x
    x = 524,979,177,845.76/612,110.40
  6. Step 6: Final answer
    x = 857,654.40

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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.