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Finding the Fourth Proportional to 718,785.30, 992,242.53 and 464,260.62

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Solution

The fourth proportional to 718,785.30, 992,242.53 and 464,260.62 is: 640,885.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,785.30 : 992,242.53 = 464,260.62 : x
  2. Step 2: Convert to fraction form
    718,785.30/992,242.53 = 464,260.62/x
  3. Step 3: Cross multiply
    718,785.30x = 992,242.53 × 464,260.62
  4. Step 4: Simplify right side
    718,785.30x = 460,659,132,168.17
  5. Step 5: Solve for x
    x = 460,659,132,168.17/718,785.30
  6. Step 6: Final answer
    x = 640,885.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.