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Finding the Fourth Proportional to 684,904.40, 945,103.72 and 463,691.71

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Solution

The fourth proportional to 684,904.40, 945,103.72 and 463,691.71 is: 639,851.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,904.40 : 945,103.72 = 463,691.71 : x
  2. Step 2: Convert to fraction form
    684,904.40/945,103.72 = 463,691.71/x
  3. Step 3: Cross multiply
    684,904.40x = 945,103.72 × 463,691.71
  4. Step 4: Simplify right side
    684,904.40x = 438,236,762,679.23
  5. Step 5: Solve for x
    x = 438,236,762,679.23/684,904.40
  6. Step 6: Final answer
    x = 639,851.00

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Double scale
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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.