Home / 858,110.32-1,184,113.95-509,190.58

Finding the Fourth Proportional to 858,110.32, 1,184,113.95 and 509,190.58

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Solution

The fourth proportional to 858,110.32, 1,184,113.95 and 509,190.58 is: 702,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,110.32 : 1,184,113.95 = 509,190.58 : x
  2. Step 2: Convert to fraction form
    858,110.32/1,184,113.95 = 509,190.58/x
  3. Step 3: Cross multiply
    858,110.32x = 1,184,113.95 × 509,190.58
  4. Step 4: Simplify right side
    858,110.32x = 602,939,668,986.59
  5. Step 5: Solve for x
    x = 602,939,668,986.59/858,110.32
  6. Step 6: Final answer
    x = 702,636.54

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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.