Home / 885,783.40-1,328,675.10-870,231.40

Finding the Fourth Proportional to 885,783.40, 1,328,675.10 and 870,231.40

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Solution

The fourth proportional to 885,783.40, 1,328,675.10 and 870,231.40 is: 1,305,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,783.40 : 1,328,675.10 = 870,231.40 : x
  2. Step 2: Convert to fraction form
    885,783.40/1,328,675.10 = 870,231.40/x
  3. Step 3: Cross multiply
    885,783.40x = 1,328,675.10 × 870,231.40
  4. Step 4: Simplify right side
    885,783.40x = 1,156,254,792,418.14
  5. Step 5: Solve for x
    x = 1,156,254,792,418.14/885,783.40
  6. Step 6: Final answer
    x = 1,305,347.10

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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.