Home / 805,555.26-1,111,389.93-499,521.60

Finding the Fourth Proportional to 805,555.26, 1,111,389.93 and 499,521.60

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Solution

The fourth proportional to 805,555.26, 1,111,389.93 and 499,521.60 is: 689,168.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,555.26 : 1,111,389.93 = 499,521.60 : x
  2. Step 2: Convert to fraction form
    805,555.26/1,111,389.93 = 499,521.60/x
  3. Step 3: Cross multiply
    805,555.26x = 1,111,389.93 × 499,521.60
  4. Step 4: Simplify right side
    805,555.26x = 555,163,276,057.49
  5. Step 5: Solve for x
    x = 555,163,276,057.49/805,555.26
  6. Step 6: Final answer
    x = 689,168.46

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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.