Home / 993,911.20-1,490,866.80-883,686.40

Finding the Fourth Proportional to 993,911.20, 1,490,866.80 and 883,686.40

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Solution

The fourth proportional to 993,911.20, 1,490,866.80 and 883,686.40 is: 1,325,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,911.20 : 1,490,866.80 = 883,686.40 : x
  2. Step 2: Convert to fraction form
    993,911.20/1,490,866.80 = 883,686.40/x
  3. Step 3: Cross multiply
    993,911.20x = 1,490,866.80 × 883,686.40
  4. Step 4: Simplify right side
    993,911.20x = 1,317,458,715,371.52
  5. Step 5: Solve for x
    x = 1,317,458,715,371.52/993,911.20
  6. Step 6: Final answer
    x = 1,325,529.60

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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.