Home / 385,785.60-578,851.20-175,315.20

Finding the Fourth Proportional to 385,785.60, 578,851.20 and 175,315.20

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Solution

The fourth proportional to 385,785.60, 578,851.20 and 175,315.20 is: 263,051.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,785.60 : 578,851.20 = 175,315.20 : x
  2. Step 2: Convert to fraction form
    385,785.60/578,851.20 = 175,315.20/x
  3. Step 3: Cross multiply
    385,785.60x = 578,851.20 × 175,315.20
  4. Step 4: Simplify right side
    385,785.60x = 101,481,413,898.24
  5. Step 5: Solve for x
    x = 101,481,413,898.24/385,785.60
  6. Step 6: Final answer
    x = 263,051.33

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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.