Home / 786,965.09-1,178,004.09-426,240.01

Finding the Fourth Proportional to 786,965.09, 1,178,004.09 and 426,240.01

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Solution

The fourth proportional to 786,965.09, 1,178,004.09 and 426,240.01 is: 638,036.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,965.09 : 1,178,004.09 = 426,240.01 : x
  2. Step 2: Convert to fraction form
    786,965.09/1,178,004.09 = 426,240.01/x
  3. Step 3: Cross multiply
    786,965.09x = 1,178,004.09 × 426,240.01
  4. Step 4: Simplify right side
    786,965.09x = 502,112,475,101.64
  5. Step 5: Solve for x
    x = 502,112,475,101.64/786,965.09
  6. Step 6: Final answer
    x = 638,036.53

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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.