Home / 991,521.41-1,487,317.39-317,515.14

Finding the Fourth Proportional to 991,521.41, 1,487,317.39 and 317,515.14

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Solution

The fourth proportional to 991,521.41, 1,487,317.39 and 317,515.14 is: 476,284.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,521.41 : 1,487,317.39 = 317,515.14 : x
  2. Step 2: Convert to fraction form
    991,521.41/1,487,317.39 = 317,515.14/x
  3. Step 3: Cross multiply
    991,521.41x = 1,487,317.39 × 317,515.14
  4. Step 4: Simplify right side
    991,521.41x = 472,245,790,302.52
  5. Step 5: Solve for x
    x = 472,245,790,302.52/991,521.41
  6. Step 6: Final answer
    x = 476,284.01

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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.