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Finding the Fourth Proportional to 585,217.39, 807,600 and 316,945.39

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Solution

The fourth proportional to 585,217.39, 807,600 and 316,945.39 is: 437,384.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,217.39 : 807,600 = 316,945.39 : x
  2. Step 2: Convert to fraction form
    585,217.39/807,600 = 316,945.39/x
  3. Step 3: Cross multiply
    585,217.39x = 807,600 × 316,945.39
  4. Step 4: Simplify right side
    585,217.39x = 255,965,096,964
  5. Step 5: Solve for x
    x = 255,965,096,964/585,217.39
  6. Step 6: Final answer
    x = 437,384.64

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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.