Home / 812,675.56-1,118,926.29-715,819

Finding the Fourth Proportional to 812,675.56, 1,118,926.29 and 715,819

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Solution

The fourth proportional to 812,675.56, 1,118,926.29 and 715,819 is: 985,570.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,675.56 : 1,118,926.29 = 715,819 : x
  2. Step 2: Convert to fraction form
    812,675.56/1,118,926.29 = 715,819/x
  3. Step 3: Cross multiply
    812,675.56x = 1,118,926.29 × 715,819
  4. Step 4: Simplify right side
    812,675.56x = 800,948,697,981.51
  5. Step 5: Solve for x
    x = 800,948,697,981.51/812,675.56
  6. Step 6: Final answer
    x = 985,570.06

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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.