Home / 1,437,128.80-2,155,100.08-490,575.84

Finding the Fourth Proportional to 1,437,128.80, 2,155,100.08 and 490,575.84

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Solution

The fourth proportional to 1,437,128.80, 2,155,100.08 and 490,575.84 is: 735,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,128.80 : 2,155,100.08 = 490,575.84 : x
  2. Step 2: Convert to fraction form
    1,437,128.80/2,155,100.08 = 490,575.84/x
  3. Step 3: Cross multiply
    1,437,128.80x = 2,155,100.08 × 490,575.84
  4. Step 4: Simplify right side
    1,437,128.80x = 1,057,240,032,030.07
  5. Step 5: Solve for x
    x = 1,057,240,032,030.07/1,437,128.80
  6. Step 6: Final answer
    x = 735,661.29

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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.