Home / 1,230,359.30-1,845,798.15-520,021.70

Finding the Fourth Proportional to 1,230,359.30, 1,845,798.15 and 520,021.70

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Solution

The fourth proportional to 1,230,359.30, 1,845,798.15 and 520,021.70 is: 780,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,359.30 : 1,845,798.15 = 520,021.70 : x
  2. Step 2: Convert to fraction form
    1,230,359.30/1,845,798.15 = 520,021.70/x
  3. Step 3: Cross multiply
    1,230,359.30x = 1,845,798.15 × 520,021.70
  4. Step 4: Simplify right side
    1,230,359.30x = 959,855,091,819.86
  5. Step 5: Solve for x
    x = 959,855,091,819.86/1,230,359.30
  6. Step 6: Final answer
    x = 780,142.10

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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.