Home / 915,886.54-1,373,954.81-316,686.81

Finding the Fourth Proportional to 915,886.54, 1,373,954.81 and 316,686.81

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Solution

The fourth proportional to 915,886.54, 1,373,954.81 and 316,686.81 is: 475,073.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,886.54 : 1,373,954.81 = 316,686.81 : x
  2. Step 2: Convert to fraction form
    915,886.54/1,373,954.81 = 316,686.81/x
  3. Step 3: Cross multiply
    915,886.54x = 1,373,954.81 × 316,686.81
  4. Step 4: Simplify right side
    915,886.54x = 435,113,369,431.95
  5. Step 5: Solve for x
    x = 435,113,369,431.95/915,886.54
  6. Step 6: Final answer
    x = 475,073.44

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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.