Home / 913,029.96-1,368,802.74-380,947.44

Finding the Fourth Proportional to 913,029.96, 1,368,802.74 and 380,947.44

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Solution

The fourth proportional to 913,029.96, 1,368,802.74 and 380,947.44 is: 571,111.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,029.96 : 1,368,802.74 = 380,947.44 : x
  2. Step 2: Convert to fraction form
    913,029.96/1,368,802.74 = 380,947.44/x
  3. Step 3: Cross multiply
    913,029.96x = 1,368,802.74 × 380,947.44
  4. Step 4: Simplify right side
    913,029.96x = 521,441,899,667.99
  5. Step 5: Solve for x
    x = 521,441,899,667.99/913,029.96
  6. Step 6: Final answer
    x = 571,111.49

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1.5x scale

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.