Home / 420,864.93-631,548.90-154,652.36

Finding the Fourth Proportional to 420,864.93, 631,548.90 and 154,652.36

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Solution

The fourth proportional to 420,864.93, 631,548.90 and 154,652.36 is: 232,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,864.93 : 631,548.90 = 154,652.36 : x
  2. Step 2: Convert to fraction form
    420,864.93/631,548.90 = 154,652.36/x
  3. Step 3: Cross multiply
    420,864.93x = 631,548.90 × 154,652.36
  4. Step 4: Simplify right side
    420,864.93x = 97,670,524,682.66
  5. Step 5: Solve for x
    x = 97,670,524,682.66/420,864.93
  6. Step 6: Final answer
    x = 232,070.95

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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.