Home / 1,330,763.60-1,996,145.40-489,643.40

Finding the Fourth Proportional to 1,330,763.60, 1,996,145.40 and 489,643.40

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Solution

The fourth proportional to 1,330,763.60, 1,996,145.40 and 489,643.40 is: 734,465.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,763.60 : 1,996,145.40 = 489,643.40 : x
  2. Step 2: Convert to fraction form
    1,330,763.60/1,996,145.40 = 489,643.40/x
  3. Step 3: Cross multiply
    1,330,763.60x = 1,996,145.40 × 489,643.40
  4. Step 4: Simplify right side
    1,330,763.60x = 977,399,420,550.36
  5. Step 5: Solve for x
    x = 977,399,420,550.36/1,330,763.60
  6. Step 6: Final answer
    x = 734,465.10

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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.