Home / 1,243,808.20-1,865,712.30-402,359.95

Finding the Fourth Proportional to 1,243,808.20, 1,865,712.30 and 402,359.95

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Solution

The fourth proportional to 1,243,808.20, 1,865,712.30 and 402,359.95 is: 603,539.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,808.20 : 1,865,712.30 = 402,359.95 : x
  2. Step 2: Convert to fraction form
    1,243,808.20/1,865,712.30 = 402,359.95/x
  3. Step 3: Cross multiply
    1,243,808.20x = 1,865,712.30 × 402,359.95
  4. Step 4: Simplify right side
    1,243,808.20x = 750,687,907,742.39
  5. Step 5: Solve for x
    x = 750,687,907,742.39/1,243,808.20
  6. Step 6: Final answer
    x = 603,539.93

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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.