Home / 1,188,747.09-1,640,470.95-679,460.40

Finding the Fourth Proportional to 1,188,747.09, 1,640,470.95 and 679,460.40

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Solution

The fourth proportional to 1,188,747.09, 1,640,470.95 and 679,460.40 is: 937,655.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,747.09 : 1,640,470.95 = 679,460.40 : x
  2. Step 2: Convert to fraction form
    1,188,747.09/1,640,470.95 = 679,460.40/x
  3. Step 3: Cross multiply
    1,188,747.09x = 1,640,470.95 × 679,460.40
  4. Step 4: Simplify right side
    1,188,747.09x = 1,114,635,047,875.38
  5. Step 5: Solve for x
    x = 1,114,635,047,875.38/1,188,747.09
  6. Step 6: Final answer
    x = 937,655.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.