Home / 1,430,654.40-1,974,474.72-858,009.60

Finding the Fourth Proportional to 1,430,654.40, 1,974,474.72 and 858,009.60

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Solution

The fourth proportional to 1,430,654.40, 1,974,474.72 and 858,009.60 is: 1,184,156.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,654.40 : 1,974,474.72 = 858,009.60 : x
  2. Step 2: Convert to fraction form
    1,430,654.40/1,974,474.72 = 858,009.60/x
  3. Step 3: Cross multiply
    1,430,654.40x = 1,974,474.72 × 858,009.60
  4. Step 4: Simplify right side
    1,430,654.40x = 1,694,118,264,717.31
  5. Step 5: Solve for x
    x = 1,694,118,264,717.31/1,430,654.40
  6. Step 6: Final answer
    x = 1,184,156.19

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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.