Home / 1,021,312.98-1,530,535.50-807,139.26

Finding the Fourth Proportional to 1,021,312.98, 1,530,535.50 and 807,139.26

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Solution

The fourth proportional to 1,021,312.98, 1,530,535.50 and 807,139.26 is: 1,209,575.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,312.98 : 1,530,535.50 = 807,139.26 : x
  2. Step 2: Convert to fraction form
    1,021,312.98/1,530,535.50 = 807,139.26/x
  3. Step 3: Cross multiply
    1,021,312.98x = 1,530,535.50 × 807,139.26
  4. Step 4: Simplify right side
    1,021,312.98x = 1,235,355,290,873.73
  5. Step 5: Solve for x
    x = 1,235,355,290,873.73/1,021,312.98
  6. Step 6: Final answer
    x = 1,209,575.63

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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.