Home / 1,152,525.78-1,590,693.74-687,409.45

Finding the Fourth Proportional to 1,152,525.78, 1,590,693.74 and 687,409.45

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Solution

The fourth proportional to 1,152,525.78, 1,590,693.74 and 687,409.45 is: 948,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,525.78 : 1,590,693.74 = 687,409.45 : x
  2. Step 2: Convert to fraction form
    1,152,525.78/1,590,693.74 = 687,409.45/x
  3. Step 3: Cross multiply
    1,152,525.78x = 1,590,693.74 × 687,409.45
  4. Step 4: Simplify right side
    1,152,525.78x = 1,093,457,916,910.18
  5. Step 5: Solve for x
    x = 1,093,457,916,910.18/1,152,525.78
  6. Step 6: Final answer
    x = 948,749.20

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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.