Home / 1,343,645.70-2,010,547.80-989,351.70

Finding the Fourth Proportional to 1,343,645.70, 2,010,547.80 and 989,351.70

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Solution

The fourth proportional to 1,343,645.70, 2,010,547.80 and 989,351.70 is: 1,480,404.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,645.70 : 2,010,547.80 = 989,351.70 : x
  2. Step 2: Convert to fraction form
    1,343,645.70/2,010,547.80 = 989,351.70/x
  3. Step 3: Cross multiply
    1,343,645.70x = 2,010,547.80 × 989,351.70
  4. Step 4: Simplify right side
    1,343,645.70x = 1,989,138,883,861.26
  5. Step 5: Solve for x
    x = 1,989,138,883,861.26/1,343,645.70
  6. Step 6: Final answer
    x = 1,480,404.31

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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.