Home / 385,816.68-578,025.14-284,864.76

Finding the Fourth Proportional to 385,816.68, 578,025.14 and 284,864.76

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Solution

The fourth proportional to 385,816.68, 578,025.14 and 284,864.76 is: 426,780.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,816.68 : 578,025.14 = 284,864.76 : x
  2. Step 2: Convert to fraction form
    385,816.68/578,025.14 = 284,864.76/x
  3. Step 3: Cross multiply
    385,816.68x = 578,025.14 × 284,864.76
  4. Step 4: Simplify right side
    385,816.68x = 164,658,992,780.07
  5. Step 5: Solve for x
    x = 164,658,992,780.07/385,816.68
  6. Step 6: Final answer
    x = 426,780.39

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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.