Home / 1,025,989.47-1,539,149.58-316,017.18

Finding the Fourth Proportional to 1,025,989.47, 1,539,149.58 and 316,017.18

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Solution

The fourth proportional to 1,025,989.47, 1,539,149.58 and 316,017.18 is: 474,076.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,989.47 : 1,539,149.58 = 316,017.18 : x
  2. Step 2: Convert to fraction form
    1,025,989.47/1,539,149.58 = 316,017.18/x
  3. Step 3: Cross multiply
    1,025,989.47x = 1,539,149.58 × 316,017.18
  4. Step 4: Simplify right side
    1,025,989.47x = 486,397,709,869.78
  5. Step 5: Solve for x
    x = 486,397,709,869.78/1,025,989.47
  6. Step 6: Final answer
    x = 474,076.71

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Double scale
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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.