Home / 1,260,780.98-1,739,869.50-716,916.80

Finding the Fourth Proportional to 1,260,780.98, 1,739,869.50 and 716,916.80

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Solution

The fourth proportional to 1,260,780.98, 1,739,869.50 and 716,916.80 is: 989,340.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,780.98 : 1,739,869.50 = 716,916.80 : x
  2. Step 2: Convert to fraction form
    1,260,780.98/1,739,869.50 = 716,916.80/x
  3. Step 3: Cross multiply
    1,260,780.98x = 1,739,869.50 × 716,916.80
  4. Step 4: Simplify right side
    1,260,780.98x = 1,247,341,674,357.60
  5. Step 5: Solve for x
    x = 1,247,341,674,357.60/1,260,780.98
  6. Step 6: Final answer
    x = 989,340.50

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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.