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Finding the Fourth Proportional to 1,210,765.86, 1,815,303.15 and 536,481

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Solution

The fourth proportional to 1,210,765.86, 1,815,303.15 and 536,481 is: 804,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,765.86 : 1,815,303.15 = 536,481 : x
  2. Step 2: Convert to fraction form
    1,210,765.86/1,815,303.15 = 536,481/x
  3. Step 3: Cross multiply
    1,210,765.86x = 1,815,303.15 × 536,481
  4. Step 4: Simplify right side
    1,210,765.86x = 973,875,649,215.15
  5. Step 5: Solve for x
    x = 973,875,649,215.15/1,210,765.86
  6. Step 6: Final answer
    x = 804,346.80

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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.