Home / 1,371,056.60-1,891,926.07-819,663.35

Finding the Fourth Proportional to 1,371,056.60, 1,891,926.07 and 819,663.35

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Solution

The fourth proportional to 1,371,056.60, 1,891,926.07 and 819,663.35 is: 1,131,056.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,056.60 : 1,891,926.07 = 819,663.35 : x
  2. Step 2: Convert to fraction form
    1,371,056.60/1,891,926.07 = 819,663.35/x
  3. Step 3: Cross multiply
    1,371,056.60x = 1,891,926.07 × 819,663.35
  4. Step 4: Simplify right side
    1,371,056.60x = 1,550,742,448,979.75
  5. Step 5: Solve for x
    x = 1,550,742,448,979.75/1,371,056.60
  6. Step 6: Final answer
    x = 1,131,056.48

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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.