Home / 690,020.51-1,035,242.56-353,297.58

Finding the Fourth Proportional to 690,020.51, 1,035,242.56 and 353,297.58

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Solution

The fourth proportional to 690,020.51, 1,035,242.56 and 353,297.58 is: 530,054.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,020.51 : 1,035,242.56 = 353,297.58 : x
  2. Step 2: Convert to fraction form
    690,020.51/1,035,242.56 = 353,297.58/x
  3. Step 3: Cross multiply
    690,020.51x = 1,035,242.56 × 353,297.58
  4. Step 4: Simplify right side
    690,020.51x = 365,748,690,277.76
  5. Step 5: Solve for x
    x = 365,748,690,277.76/690,020.51
  6. Step 6: Final answer
    x = 530,054.81

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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.