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Finding the Fourth Proportional to 585,457, 807,920.08 and 330,802.72

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Solution

The fourth proportional to 585,457, 807,920.08 and 330,802.72 is: 456,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,457 : 807,920.08 = 330,802.72 : x
  2. Step 2: Convert to fraction form
    585,457/807,920.08 = 330,802.72/x
  3. Step 3: Cross multiply
    585,457x = 807,920.08 × 330,802.72
  4. Step 4: Simplify right side
    585,457x = 267,262,160,006.62
  5. Step 5: Solve for x
    x = 267,262,160,006.62/585,457
  6. Step 6: Final answer
    x = 456,501.78

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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.