Home / 1,328,240.70-1,990,064.70-616,809.60

Finding the Fourth Proportional to 1,328,240.70, 1,990,064.70 and 616,809.60

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Solution

The fourth proportional to 1,328,240.70, 1,990,064.70 and 616,809.60 is: 924,148.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,240.70 : 1,990,064.70 = 616,809.60 : x
  2. Step 2: Convert to fraction form
    1,328,240.70/1,990,064.70 = 616,809.60/x
  3. Step 3: Cross multiply
    1,328,240.70x = 1,990,064.70 × 616,809.60
  4. Step 4: Simplify right side
    1,328,240.70x = 1,227,491,011,581.12
  5. Step 5: Solve for x
    x = 1,227,491,011,581.12/1,328,240.70
  6. Step 6: Final answer
    x = 924,148.02

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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.