Home / 671,618.34-1,007,435.27-287,314.92

Finding the Fourth Proportional to 671,618.34, 1,007,435.27 and 287,314.92

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Solution

The fourth proportional to 671,618.34, 1,007,435.27 and 287,314.92 is: 430,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,618.34 : 1,007,435.27 = 287,314.92 : x
  2. Step 2: Convert to fraction form
    671,618.34/1,007,435.27 = 287,314.92/x
  3. Step 3: Cross multiply
    671,618.34x = 1,007,435.27 × 287,314.92
  4. Step 4: Simplify right side
    671,618.34x = 289,451,182,568.65
  5. Step 5: Solve for x
    x = 289,451,182,568.65/671,618.34
  6. Step 6: Final answer
    x = 430,975.70

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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.