Home / 1,310,588.40-1,965,882.60-424,124.40

Finding the Fourth Proportional to 1,310,588.40, 1,965,882.60 and 424,124.40

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Solution

The fourth proportional to 1,310,588.40, 1,965,882.60 and 424,124.40 is: 636,186.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,588.40 : 1,965,882.60 = 424,124.40 : x
  2. Step 2: Convert to fraction form
    1,310,588.40/1,965,882.60 = 424,124.40/x
  3. Step 3: Cross multiply
    1,310,588.40x = 1,965,882.60 × 424,124.40
  4. Step 4: Simplify right side
    1,310,588.40x = 833,778,778,195.44
  5. Step 5: Solve for x
    x = 833,778,778,195.44/1,310,588.40
  6. Step 6: Final answer
    x = 636,186.60

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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.