Home / 947,392.96-1,421,031.12-316,253.92

Finding the Fourth Proportional to 947,392.96, 1,421,031.12 and 316,253.92

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Solution

The fourth proportional to 947,392.96, 1,421,031.12 and 316,253.92 is: 474,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,392.96 : 1,421,031.12 = 316,253.92 : x
  2. Step 2: Convert to fraction form
    947,392.96/1,421,031.12 = 316,253.92/x
  3. Step 3: Cross multiply
    947,392.96x = 1,421,031.12 × 316,253.92
  4. Step 4: Simplify right side
    947,392.96x = 449,406,662,141.99
  5. Step 5: Solve for x
    x = 449,406,662,141.99/947,392.96
  6. Step 6: Final answer
    x = 474,361.41

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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.