Home / 1,210,405.48-1,815,848.78-411,472.50

Finding the Fourth Proportional to 1,210,405.48, 1,815,848.78 and 411,472.50

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Solution

The fourth proportional to 1,210,405.48, 1,815,848.78 and 411,472.50 is: 617,290.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,405.48 : 1,815,848.78 = 411,472.50 : x
  2. Step 2: Convert to fraction form
    1,210,405.48/1,815,848.78 = 411,472.50/x
  3. Step 3: Cross multiply
    1,210,405.48x = 1,815,848.78 × 411,472.50
  4. Step 4: Simplify right side
    1,210,405.48x = 747,171,837,128.55
  5. Step 5: Solve for x
    x = 747,171,837,128.55/1,210,405.48
  6. Step 6: Final answer
    x = 617,290.53

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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.