Home / 840,298.07-1,159,709.38-477,776.25

Finding the Fourth Proportional to 840,298.07, 1,159,709.38 and 477,776.25

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Solution

The fourth proportional to 840,298.07, 1,159,709.38 and 477,776.25 is: 659,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,298.07 : 1,159,709.38 = 477,776.25 : x
  2. Step 2: Convert to fraction form
    840,298.07/1,159,709.38 = 477,776.25/x
  3. Step 3: Cross multiply
    840,298.07x = 1,159,709.38 × 477,776.25
  4. Step 4: Simplify right side
    840,298.07x = 554,081,597,471.78
  5. Step 5: Solve for x
    x = 554,081,597,471.78/840,298.07
  6. Step 6: Final answer
    x = 659,386.97

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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.