Home / 1,428,477.41-1,971,355.69-783,920.67

Finding the Fourth Proportional to 1,428,477.41, 1,971,355.69 and 783,920.67

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Solution

The fourth proportional to 1,428,477.41, 1,971,355.69 and 783,920.67 is: 1,081,841.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,477.41 : 1,971,355.69 = 783,920.67 : x
  2. Step 2: Convert to fraction form
    1,428,477.41/1,971,355.69 = 783,920.67/x
  3. Step 3: Cross multiply
    1,428,477.41x = 1,971,355.69 × 783,920.67
  4. Step 4: Simplify right side
    1,428,477.41x = 1,545,386,473,313.11
  5. Step 5: Solve for x
    x = 1,545,386,473,313.11/1,428,477.41
  6. Step 6: Final answer
    x = 1,081,841.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.