Home / 1,533,590.91-2,116,834.83-989,727.75

Finding the Fourth Proportional to 1,533,590.91, 2,116,834.83 and 989,727.75

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Solution

The fourth proportional to 1,533,590.91, 2,116,834.83 and 989,727.75 is: 1,366,133.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533,590.91 : 2,116,834.83 = 989,727.75 : x
  2. Step 2: Convert to fraction form
    1,533,590.91/2,116,834.83 = 989,727.75/x
  3. Step 3: Cross multiply
    1,533,590.91x = 2,116,834.83 × 989,727.75
  4. Step 4: Simplify right side
    1,533,590.91x = 2,095,090,173,417.53
  5. Step 5: Solve for x
    x = 2,095,090,173,417.53/1,533,590.91
  6. Step 6: Final answer
    x = 1,366,133.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.