Home / 885,205.80-1,328,464.80-649,009.80

Finding the Fourth Proportional to 885,205.80, 1,328,464.80 and 649,009.80

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Solution

The fourth proportional to 885,205.80, 1,328,464.80 and 649,009.80 is: 973,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,205.80 : 1,328,464.80 = 649,009.80 : x
  2. Step 2: Convert to fraction form
    885,205.80/1,328,464.80 = 649,009.80/x
  3. Step 3: Cross multiply
    885,205.80x = 1,328,464.80 × 649,009.80
  4. Step 4: Simplify right side
    885,205.80x = 862,186,674,155.04
  5. Step 5: Solve for x
    x = 862,186,674,155.04/885,205.80
  6. Step 6: Final answer
    x = 973,995.74

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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.