Home / 666,885.60-1,000,426.80-193,509.42

Finding the Fourth Proportional to 666,885.60, 1,000,426.80 and 193,509.42

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Solution

The fourth proportional to 666,885.60, 1,000,426.80 and 193,509.42 is: 290,292.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,885.60 : 1,000,426.80 = 193,509.42 : x
  2. Step 2: Convert to fraction form
    666,885.60/1,000,426.80 = 193,509.42/x
  3. Step 3: Cross multiply
    666,885.60x = 1,000,426.80 × 193,509.42
  4. Step 4: Simplify right side
    666,885.60x = 193,592,009,820.46
  5. Step 5: Solve for x
    x = 193,592,009,820.46/666,885.60
  6. Step 6: Final answer
    x = 290,292.68

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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.