Home / 786,917.80-1,180,376.70-724,916.35

Finding the Fourth Proportional to 786,917.80, 1,180,376.70 and 724,916.35

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Solution

The fourth proportional to 786,917.80, 1,180,376.70 and 724,916.35 is: 1,087,374.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,917.80 : 1,180,376.70 = 724,916.35 : x
  2. Step 2: Convert to fraction form
    786,917.80/1,180,376.70 = 724,916.35/x
  3. Step 3: Cross multiply
    786,917.80x = 1,180,376.70 × 724,916.35
  4. Step 4: Simplify right side
    786,917.80x = 855,674,368,989.05
  5. Step 5: Solve for x
    x = 855,674,368,989.05/786,917.80
  6. Step 6: Final answer
    x = 1,087,374.53

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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.