Home / 385,985.60-578,632.80-252,929.60

Finding the Fourth Proportional to 385,985.60, 578,632.80 and 252,929.60

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Solution

The fourth proportional to 385,985.60, 578,632.80 and 252,929.60 is: 379,167.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,985.60 : 578,632.80 = 252,929.60 : x
  2. Step 2: Convert to fraction form
    385,985.60/578,632.80 = 252,929.60/x
  3. Step 3: Cross multiply
    385,985.60x = 578,632.80 × 252,929.60
  4. Step 4: Simplify right side
    385,985.60x = 146,353,362,650.88
  5. Step 5: Solve for x
    x = 146,353,362,650.88/385,985.60
  6. Step 6: Final answer
    x = 379,167.93

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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.