Home / 1,210,405.63-1,815,658.56-357,477.45

Finding the Fourth Proportional to 1,210,405.63, 1,815,658.56 and 357,477.45

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Solution

The fourth proportional to 1,210,405.63, 1,815,658.56 and 357,477.45 is: 536,230.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,405.63 : 1,815,658.56 = 357,477.45 : x
  2. Step 2: Convert to fraction form
    1,210,405.63/1,815,658.56 = 357,477.45/x
  3. Step 3: Cross multiply
    1,210,405.63x = 1,815,658.56 × 357,477.45
  4. Step 4: Simplify right side
    1,210,405.63x = 649,056,992,099.47
  5. Step 5: Solve for x
    x = 649,056,992,099.47/1,210,405.63
  6. Step 6: Final answer
    x = 536,230.98

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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.