Home / 1,215,925.28-1,677,106.64-853,430

Finding the Fourth Proportional to 1,215,925.28, 1,677,106.64 and 853,430

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Solution

The fourth proportional to 1,215,925.28, 1,677,106.64 and 853,430 is: 1,177,122.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,925.28 : 1,677,106.64 = 853,430 : x
  2. Step 2: Convert to fraction form
    1,215,925.28/1,677,106.64 = 853,430/x
  3. Step 3: Cross multiply
    1,215,925.28x = 1,677,106.64 × 853,430
  4. Step 4: Simplify right side
    1,215,925.28x = 1,431,293,119,775.20
  5. Step 5: Solve for x
    x = 1,431,293,119,775.20/1,215,925.28
  6. Step 6: Final answer
    x = 1,177,122.59

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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.