Home / 690,142.96-1,035,319-216,783.84

Finding the Fourth Proportional to 690,142.96, 1,035,319 and 216,783.84

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Solution

The fourth proportional to 690,142.96, 1,035,319 and 216,783.84 is: 325,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,142.96 : 1,035,319 = 216,783.84 : x
  2. Step 2: Convert to fraction form
    690,142.96/1,035,319 = 216,783.84/x
  3. Step 3: Cross multiply
    690,142.96x = 1,035,319 × 216,783.84
  4. Step 4: Simplify right side
    690,142.96x = 224,440,428,444.96
  5. Step 5: Solve for x
    x = 224,440,428,444.96/690,142.96
  6. Step 6: Final answer
    x = 325,208.60

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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.