Home / 1,386,369.60-2,079,554.40-439,814.40

Finding the Fourth Proportional to 1,386,369.60, 2,079,554.40 and 439,814.40

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Solution

The fourth proportional to 1,386,369.60, 2,079,554.40 and 439,814.40 is: 659,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,369.60 : 2,079,554.40 = 439,814.40 : x
  2. Step 2: Convert to fraction form
    1,386,369.60/2,079,554.40 = 439,814.40/x
  3. Step 3: Cross multiply
    1,386,369.60x = 2,079,554.40 × 439,814.40
  4. Step 4: Simplify right side
    1,386,369.60x = 914,617,970,703.36
  5. Step 5: Solve for x
    x = 914,617,970,703.36/1,386,369.60
  6. Step 6: Final answer
    x = 659,721.60

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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.