Home / 820,325.70-1,230,488.55-618,246.90

Finding the Fourth Proportional to 820,325.70, 1,230,488.55 and 618,246.90

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Solution

The fourth proportional to 820,325.70, 1,230,488.55 and 618,246.90 is: 927,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,325.70 : 1,230,488.55 = 618,246.90 : x
  2. Step 2: Convert to fraction form
    820,325.70/1,230,488.55 = 618,246.90/x
  3. Step 3: Cross multiply
    820,325.70x = 1,230,488.55 × 618,246.90
  4. Step 4: Simplify right side
    820,325.70x = 760,745,731,523.00
  5. Step 5: Solve for x
    x = 760,745,731,523.00/820,325.70
  6. Step 6: Final answer
    x = 927,370.35

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1.5x scale

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.