Home / 939,473.64-1,409,206.65-340,294.56

Finding the Fourth Proportional to 939,473.64, 1,409,206.65 and 340,294.56

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Solution

The fourth proportional to 939,473.64, 1,409,206.65 and 340,294.56 is: 510,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,473.64 : 1,409,206.65 = 340,294.56 : x
  2. Step 2: Convert to fraction form
    939,473.64/1,409,206.65 = 340,294.56/x
  3. Step 3: Cross multiply
    939,473.64x = 1,409,206.65 × 340,294.56
  4. Step 4: Simplify right side
    939,473.64x = 479,545,356,910.82
  5. Step 5: Solve for x
    x = 479,545,356,910.82/939,473.64
  6. Step 6: Final answer
    x = 510,440.46

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Double scale
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Similar ratio
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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.