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Finding the Fourth Proportional to 608,869.80, 853,817.40 and 608,869.80

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Solution

The fourth proportional to 608,869.80, 853,817.40 and 608,869.80 is: 853,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,869.80 : 853,817.40 = 608,869.80 : x
  2. Step 2: Convert to fraction form
    608,869.80/853,817.40 = 608,869.80/x
  3. Step 3: Cross multiply
    608,869.80x = 853,817.40 × 608,869.80
  4. Step 4: Simplify right side
    608,869.80x = 519,863,629,574.52
  5. Step 5: Solve for x
    x = 519,863,629,574.52/608,869.80
  6. Step 6: Final answer
    x = 853,817.40

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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.