Home / 1,289,356.80-1,934,034.84-402,892.80

Finding the Fourth Proportional to 1,289,356.80, 1,934,034.84 and 402,892.80

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Solution

The fourth proportional to 1,289,356.80, 1,934,034.84 and 402,892.80 is: 604,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,356.80 : 1,934,034.84 = 402,892.80 : x
  2. Step 2: Convert to fraction form
    1,289,356.80/1,934,034.84 = 402,892.80/x
  3. Step 3: Cross multiply
    1,289,356.80x = 1,934,034.84 × 402,892.80
  4. Step 4: Simplify right side
    1,289,356.80x = 779,208,711,985.15
  5. Step 5: Solve for x
    x = 779,208,711,985.15/1,289,356.80
  6. Step 6: Final answer
    x = 604,339.09

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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.