Home / 863,129.16-1,191,258.58-519,312.60

Finding the Fourth Proportional to 863,129.16, 1,191,258.58 and 519,312.60

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Solution

The fourth proportional to 863,129.16, 1,191,258.58 and 519,312.60 is: 716,735.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,129.16 : 1,191,258.58 = 519,312.60 : x
  2. Step 2: Convert to fraction form
    863,129.16/1,191,258.58 = 519,312.60/x
  3. Step 3: Cross multiply
    863,129.16x = 1,191,258.58 × 519,312.60
  4. Step 4: Simplify right side
    863,129.16x = 618,635,590,452.11
  5. Step 5: Solve for x
    x = 618,635,590,452.11/863,129.16
  6. Step 6: Final answer
    x = 716,735.82

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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.