Home / 690,883.50-1,035,879.93-291,417.42

Finding the Fourth Proportional to 690,883.50, 1,035,879.93 and 291,417.42

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Solution

The fourth proportional to 690,883.50, 1,035,879.93 and 291,417.42 is: 436,938.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,883.50 : 1,035,879.93 = 291,417.42 : x
  2. Step 2: Convert to fraction form
    690,883.50/1,035,879.93 = 291,417.42/x
  3. Step 3: Cross multiply
    690,883.50x = 1,035,879.93 × 291,417.42
  4. Step 4: Simplify right side
    690,883.50x = 301,873,456,630.38
  5. Step 5: Solve for x
    x = 301,873,456,630.38/690,883.50
  6. Step 6: Final answer
    x = 436,938.29

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1.5x scale

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.