Home / 1,125,274.06-1,687,366.77-415,636.30

Finding the Fourth Proportional to 1,125,274.06, 1,687,366.77 and 415,636.30

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Solution

The fourth proportional to 1,125,274.06, 1,687,366.77 and 415,636.30 is: 623,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,274.06 : 1,687,366.77 = 415,636.30 : x
  2. Step 2: Convert to fraction form
    1,125,274.06/1,687,366.77 = 415,636.30/x
  3. Step 3: Cross multiply
    1,125,274.06x = 1,687,366.77 × 415,636.30
  4. Step 4: Simplify right side
    1,125,274.06x = 701,330,881,025.75
  5. Step 5: Solve for x
    x = 701,330,881,025.75/1,125,274.06
  6. Step 6: Final answer
    x = 623,253.40

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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.