Home / 1,285,877.76-1,925,032.87-858,353.16

Finding the Fourth Proportional to 1,285,877.76, 1,925,032.87 and 858,353.16

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Solution

The fourth proportional to 1,285,877.76, 1,925,032.87 and 858,353.16 is: 1,285,003.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,877.76 : 1,925,032.87 = 858,353.16 : x
  2. Step 2: Convert to fraction form
    1,285,877.76/1,925,032.87 = 858,353.16/x
  3. Step 3: Cross multiply
    1,285,877.76x = 1,925,032.87 × 858,353.16
  4. Step 4: Simplify right side
    1,285,877.76x = 1,652,358,047,068.37
  5. Step 5: Solve for x
    x = 1,652,358,047,068.37/1,285,877.76
  6. Step 6: Final answer
    x = 1,285,003.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.