Home / 1,098,580.90-1,645,903.04-388,155.82

Finding the Fourth Proportional to 1,098,580.90, 1,645,903.04 and 388,155.82

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Solution

The fourth proportional to 1,098,580.90, 1,645,903.04 and 388,155.82 is: 581,538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,580.90 : 1,645,903.04 = 388,155.82 : x
  2. Step 2: Convert to fraction form
    1,098,580.90/1,645,903.04 = 388,155.82/x
  3. Step 3: Cross multiply
    1,098,580.90x = 1,645,903.04 × 388,155.82
  4. Step 4: Simplify right side
    1,098,580.90x = 638,866,844,131.69
  5. Step 5: Solve for x
    x = 638,866,844,131.69/1,098,580.90
  6. Step 6: Final answer
    x = 581,538.28

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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.