Home / 1,690,136.80-2,535,370.80-492,071.20

Finding the Fourth Proportional to 1,690,136.80, 2,535,370.80 and 492,071.20

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Solution

The fourth proportional to 1,690,136.80, 2,535,370.80 and 492,071.20 is: 738,155.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,136.80 : 2,535,370.80 = 492,071.20 : x
  2. Step 2: Convert to fraction form
    1,690,136.80/2,535,370.80 = 492,071.20/x
  3. Step 3: Cross multiply
    1,690,136.80x = 2,535,370.80 × 492,071.20
  4. Step 4: Simplify right side
    1,690,136.80x = 1,247,582,952,000.96
  5. Step 5: Solve for x
    x = 1,247,582,952,000.96/1,690,136.80
  6. Step 6: Final answer
    x = 738,155.01

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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.