Home / 1,980,908.40-2,971,362.60-718,280.40

Finding the Fourth Proportional to 1,980,908.40, 2,971,362.60 and 718,280.40

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Solution

The fourth proportional to 1,980,908.40, 2,971,362.60 and 718,280.40 is: 1,077,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,908.40 : 2,971,362.60 = 718,280.40 : x
  2. Step 2: Convert to fraction form
    1,980,908.40/2,971,362.60 = 718,280.40/x
  3. Step 3: Cross multiply
    1,980,908.40x = 2,971,362.60 × 718,280.40
  4. Step 4: Simplify right side
    1,980,908.40x = 2,134,271,516,873.04
  5. Step 5: Solve for x
    x = 2,134,271,516,873.04/1,980,908.40
  6. Step 6: Final answer
    x = 1,077,420.60

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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.