Home / 1,298,012.50-1,791,219.53-717,226.40

Finding the Fourth Proportional to 1,298,012.50, 1,791,219.53 and 717,226.40

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Solution

The fourth proportional to 1,298,012.50, 1,791,219.53 and 717,226.40 is: 989,751.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,012.50 : 1,791,219.53 = 717,226.40 : x
  2. Step 2: Convert to fraction form
    1,298,012.50/1,791,219.53 = 717,226.40/x
  3. Step 3: Cross multiply
    1,298,012.50x = 1,791,219.53 × 717,226.40
  4. Step 4: Simplify right side
    1,298,012.50x = 1,284,709,935,111.59
  5. Step 5: Solve for x
    x = 1,284,709,935,111.59/1,298,012.50
  6. Step 6: Final answer
    x = 989,751.59

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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.