Home / 819,802.40-1,221,460.96-773,965.70

Finding the Fourth Proportional to 819,802.40, 1,221,460.96 and 773,965.70

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Solution

The fourth proportional to 819,802.40, 1,221,460.96 and 773,965.70 is: 1,153,166.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,802.40 : 1,221,460.96 = 773,965.70 : x
  2. Step 2: Convert to fraction form
    819,802.40/1,221,460.96 = 773,965.70/x
  3. Step 3: Cross multiply
    819,802.40x = 1,221,460.96 × 773,965.70
  4. Step 4: Simplify right side
    819,802.40x = 945,368,886,929.07
  5. Step 5: Solve for x
    x = 945,368,886,929.07/819,802.40
  6. Step 6: Final answer
    x = 1,153,166.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.