Home / 690,817.32-1,036,365.66-291,459.06

Finding the Fourth Proportional to 690,817.32, 1,036,365.66 and 291,459.06

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Solution

The fourth proportional to 690,817.32, 1,036,365.66 and 291,459.06 is: 437,247.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,817.32 : 1,036,365.66 = 291,459.06 : x
  2. Step 2: Convert to fraction form
    690,817.32/1,036,365.66 = 291,459.06/x
  3. Step 3: Cross multiply
    690,817.32x = 1,036,365.66 × 291,459.06
  4. Step 4: Simplify right side
    690,817.32x = 302,058,161,079.88
  5. Step 5: Solve for x
    x = 302,058,161,079.88/690,817.32
  6. Step 6: Final answer
    x = 437,247.52

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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.