Home / 1,662,686.76-2,490,071.67-1,061,786.64

Finding the Fourth Proportional to 1,662,686.76, 2,490,071.67 and 1,061,786.64

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Solution

The fourth proportional to 1,662,686.76, 2,490,071.67 and 1,061,786.64 is: 1,590,152.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662,686.76 : 2,490,071.67 = 1,061,786.64 : x
  2. Step 2: Convert to fraction form
    1,662,686.76/2,490,071.67 = 1,061,786.64/x
  3. Step 3: Cross multiply
    1,662,686.76x = 2,490,071.67 × 1,061,786.64
  4. Step 4: Simplify right side
    1,662,686.76x = 2,643,924,831,848.49
  5. Step 5: Solve for x
    x = 2,643,924,831,848.49/1,662,686.76
  6. Step 6: Final answer
    x = 1,590,152.09

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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.