Home / 1,269,805.95-1,904,688-511,628.94

Finding the Fourth Proportional to 1,269,805.95, 1,904,688 and 511,628.94

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Solution

The fourth proportional to 1,269,805.95, 1,904,688 and 511,628.94 is: 767,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,805.95 : 1,904,688 = 511,628.94 : x
  2. Step 2: Convert to fraction form
    1,269,805.95/1,904,688 = 511,628.94/x
  3. Step 3: Cross multiply
    1,269,805.95x = 1,904,688 × 511,628.94
  4. Step 4: Simplify right side
    1,269,805.95x = 974,493,502,470.72
  5. Step 5: Solve for x
    x = 974,493,502,470.72/1,269,805.95
  6. Step 6: Final answer
    x = 767,434.98

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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.