Home / 1,230,397.30-1,845,855.15-520,059.70

Finding the Fourth Proportional to 1,230,397.30, 1,845,855.15 and 520,059.70

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Solution

The fourth proportional to 1,230,397.30, 1,845,855.15 and 520,059.70 is: 780,199.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,397.30 : 1,845,855.15 = 520,059.70 : x
  2. Step 2: Convert to fraction form
    1,230,397.30/1,845,855.15 = 520,059.70/x
  3. Step 3: Cross multiply
    1,230,397.30x = 1,845,855.15 × 520,059.70
  4. Step 4: Simplify right side
    1,230,397.30x = 959,954,875,552.46
  5. Step 5: Solve for x
    x = 959,954,875,552.46/1,230,397.30
  6. Step 6: Final answer
    x = 780,199.11

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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.