Home / 929,473.71-1,393,251.42-390,043.30

Finding the Fourth Proportional to 929,473.71, 1,393,251.42 and 390,043.30

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Solution

The fourth proportional to 929,473.71, 1,393,251.42 and 390,043.30 is: 584,662.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,473.71 : 1,393,251.42 = 390,043.30 : x
  2. Step 2: Convert to fraction form
    929,473.71/1,393,251.42 = 390,043.30/x
  3. Step 3: Cross multiply
    929,473.71x = 1,393,251.42 × 390,043.30
  4. Step 4: Simplify right side
    929,473.71x = 543,428,381,586.49
  5. Step 5: Solve for x
    x = 543,428,381,586.49/929,473.71
  6. Step 6: Final answer
    x = 584,662.46

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Double scale
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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.