Home / 1,009,199.90-1,513,360.56-289,382.78

Finding the Fourth Proportional to 1,009,199.90, 1,513,360.56 and 289,382.78

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Solution

The fourth proportional to 1,009,199.90, 1,513,360.56 and 289,382.78 is: 433,948.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,199.90 : 1,513,360.56 = 289,382.78 : x
  2. Step 2: Convert to fraction form
    1,009,199.90/1,513,360.56 = 289,382.78/x
  3. Step 3: Cross multiply
    1,009,199.90x = 1,513,360.56 × 289,382.78
  4. Step 4: Simplify right side
    1,009,199.90x = 437,940,485,995.16
  5. Step 5: Solve for x
    x = 437,940,485,995.16/1,009,199.90
  6. Step 6: Final answer
    x = 433,948.21

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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.