Home / 1,586,578.42-2,191,280.91-1,069,440.40

Finding the Fourth Proportional to 1,586,578.42, 2,191,280.91 and 1,069,440.40

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Solution

The fourth proportional to 1,586,578.42, 2,191,280.91 and 1,069,440.40 is: 1,477,042.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,578.42 : 2,191,280.91 = 1,069,440.40 : x
  2. Step 2: Convert to fraction form
    1,586,578.42/2,191,280.91 = 1,069,440.40/x
  3. Step 3: Cross multiply
    1,586,578.42x = 2,191,280.91 × 1,069,440.40
  4. Step 4: Simplify right side
    1,586,578.42x = 2,343,444,332,902.76
  5. Step 5: Solve for x
    x = 2,343,444,332,902.76/1,586,578.42
  6. Step 6: Final answer
    x = 1,477,042.86

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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.