Home / 1,421,150.40-2,130,688.80-579,268.80

Finding the Fourth Proportional to 1,421,150.40, 2,130,688.80 and 579,268.80

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Solution

The fourth proportional to 1,421,150.40, 2,130,688.80 and 579,268.80 is: 868,480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,150.40 : 2,130,688.80 = 579,268.80 : x
  2. Step 2: Convert to fraction form
    1,421,150.40/2,130,688.80 = 579,268.80/x
  3. Step 3: Cross multiply
    1,421,150.40x = 2,130,688.80 × 579,268.80
  4. Step 4: Simplify right side
    1,421,150.40x = 1,234,241,544,349.44
  5. Step 5: Solve for x
    x = 1,234,241,544,349.44/1,421,150.40
  6. Step 6: Final answer
    x = 868,480.59

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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.