Home / 1,289,359.80-1,934,039.34-402,895.80

Finding the Fourth Proportional to 1,289,359.80, 1,934,039.34 and 402,895.80

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Solution

The fourth proportional to 1,289,359.80, 1,934,039.34 and 402,895.80 is: 604,343.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,359.80 : 1,934,039.34 = 402,895.80 : x
  2. Step 2: Convert to fraction form
    1,289,359.80/1,934,039.34 = 402,895.80/x
  3. Step 3: Cross multiply
    1,289,359.80x = 1,934,039.34 × 402,895.80
  4. Step 4: Simplify right side
    1,289,359.80x = 779,216,327,120.77
  5. Step 5: Solve for x
    x = 779,216,327,120.77/1,289,359.80
  6. Step 6: Final answer
    x = 604,343.59

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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.