Home / 690,698.82-1,036,158.95-291,398.41

Finding the Fourth Proportional to 690,698.82, 1,036,158.95 and 291,398.41

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Solution

The fourth proportional to 690,698.82, 1,036,158.95 and 291,398.41 is: 437,144.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,698.82 : 1,036,158.95 = 291,398.41 : x
  2. Step 2: Convert to fraction form
    690,698.82/1,036,158.95 = 291,398.41/x
  3. Step 3: Cross multiply
    690,698.82x = 1,036,158.95 × 291,398.41
  4. Step 4: Simplify right side
    690,698.82x = 301,935,070,537.27
  5. Step 5: Solve for x
    x = 301,935,070,537.27/690,698.82
  6. Step 6: Final answer
    x = 437,144.33

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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.