Home / 931,446.90-1,397,498.40-457,815.60

Finding the Fourth Proportional to 931,446.90, 1,397,498.40 and 457,815.60

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Solution

The fourth proportional to 931,446.90, 1,397,498.40 and 457,815.60 is: 686,884.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,446.90 : 1,397,498.40 = 457,815.60 : x
  2. Step 2: Convert to fraction form
    931,446.90/1,397,498.40 = 457,815.60/x
  3. Step 3: Cross multiply
    931,446.90x = 1,397,498.40 × 457,815.60
  4. Step 4: Simplify right side
    931,446.90x = 639,796,568,495.04
  5. Step 5: Solve for x
    x = 639,796,568,495.04/931,446.90
  6. Step 6: Final answer
    x = 686,884.64

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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.