Home / 1,430,324.29-1,974,018.85-857,345.41

Finding the Fourth Proportional to 1,430,324.29, 1,974,018.85 and 857,345.41

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Solution

The fourth proportional to 1,430,324.29, 1,974,018.85 and 857,345.41 is: 1,183,239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,324.29 : 1,974,018.85 = 857,345.41 : x
  2. Step 2: Convert to fraction form
    1,430,324.29/1,974,018.85 = 857,345.41/x
  3. Step 3: Cross multiply
    1,430,324.29x = 1,974,018.85 × 857,345.41
  4. Step 4: Simplify right side
    1,430,324.29x = 1,692,416,005,447.71
  5. Step 5: Solve for x
    x = 1,692,416,005,447.71/1,430,324.29
  6. Step 6: Final answer
    x = 1,183,239.36

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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.