Home / 1,230,357.80-1,845,795.90-520,020.20

Finding the Fourth Proportional to 1,230,357.80, 1,845,795.90 and 520,020.20

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Solution

The fourth proportional to 1,230,357.80, 1,845,795.90 and 520,020.20 is: 780,139.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,357.80 : 1,845,795.90 = 520,020.20 : x
  2. Step 2: Convert to fraction form
    1,230,357.80/1,845,795.90 = 520,020.20/x
  3. Step 3: Cross multiply
    1,230,357.80x = 1,845,795.90 × 520,020.20
  4. Step 4: Simplify right side
    1,230,357.80x = 959,851,153,077.18
  5. Step 5: Solve for x
    x = 959,851,153,077.18/1,230,357.80
  6. Step 6: Final answer
    x = 780,139.85

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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.