Home / 690,290.61-1,035,089.38-402,195.51

Finding the Fourth Proportional to 690,290.61, 1,035,089.38 and 402,195.51

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Solution

The fourth proportional to 690,290.61, 1,035,089.38 and 402,195.51 is: 603,091.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,290.61 : 1,035,089.38 = 402,195.51 : x
  2. Step 2: Convert to fraction form
    690,290.61/1,035,089.38 = 402,195.51/x
  3. Step 3: Cross multiply
    690,290.61x = 1,035,089.38 × 402,195.51
  4. Step 4: Simplify right side
    690,290.61x = 416,308,301,587.43
  5. Step 5: Solve for x
    x = 416,308,301,587.43/690,290.61
  6. Step 6: Final answer
    x = 603,091.36

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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.