Home / 788,309.40-1,183,047.30-521,981.40

Finding the Fourth Proportional to 788,309.40, 1,183,047.30 and 521,981.40

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Solution

The fourth proportional to 788,309.40, 1,183,047.30 and 521,981.40 is: 783,358.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,309.40 : 1,183,047.30 = 521,981.40 : x
  2. Step 2: Convert to fraction form
    788,309.40/1,183,047.30 = 521,981.40/x
  3. Step 3: Cross multiply
    788,309.40x = 1,183,047.30 × 521,981.40
  4. Step 4: Simplify right side
    788,309.40x = 617,528,685,920.22
  5. Step 5: Solve for x
    x = 617,528,685,920.22/788,309.40
  6. Step 6: Final answer
    x = 783,358.27

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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.