Home / 690,923.28-1,036,526.40-291,564.12

Finding the Fourth Proportional to 690,923.28, 1,036,526.40 and 291,564.12

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Solution

The fourth proportional to 690,923.28, 1,036,526.40 and 291,564.12 is: 437,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,923.28 : 1,036,526.40 = 291,564.12 : x
  2. Step 2: Convert to fraction form
    690,923.28/1,036,526.40 = 291,564.12/x
  3. Step 3: Cross multiply
    690,923.28x = 1,036,526.40 × 291,564.12
  4. Step 4: Simplify right side
    690,923.28x = 302,213,907,672.77
  5. Step 5: Solve for x
    x = 302,213,907,672.77/690,923.28
  6. Step 6: Final answer
    x = 437,405.88

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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.