Home / 947,393.96-1,421,032.62-316,254.92

Finding the Fourth Proportional to 947,393.96, 1,421,032.62 and 316,254.92

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Solution

The fourth proportional to 947,393.96, 1,421,032.62 and 316,254.92 is: 474,362.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,393.96 : 1,421,032.62 = 316,254.92 : x
  2. Step 2: Convert to fraction form
    947,393.96/1,421,032.62 = 316,254.92/x
  3. Step 3: Cross multiply
    947,393.96x = 1,421,032.62 × 316,254.92
  4. Step 4: Simplify right side
    947,393.96x = 449,408,557,555.49
  5. Step 5: Solve for x
    x = 449,408,557,555.49/947,393.96
  6. Step 6: Final answer
    x = 474,362.91

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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.