Home / 913,341.60-1,259,578.88-784,239.76

Finding the Fourth Proportional to 913,341.60, 1,259,578.88 and 784,239.76

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Solution

The fourth proportional to 913,341.60, 1,259,578.88 and 784,239.76 is: 1,081,536.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,341.60 : 1,259,578.88 = 784,239.76 : x
  2. Step 2: Convert to fraction form
    913,341.60/1,259,578.88 = 784,239.76/x
  3. Step 3: Cross multiply
    913,341.60x = 1,259,578.88 × 784,239.76
  4. Step 4: Simplify right side
    913,341.60x = 987,811,838,552.27
  5. Step 5: Solve for x
    x = 987,811,838,552.27/913,341.60
  6. Step 6: Final answer
    x = 1,081,536.02

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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.