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Finding the Fourth Proportional to 530,955.66, 796,550.04 and 390,287.82

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Solution

The fourth proportional to 530,955.66, 796,550.04 and 390,287.82 is: 585,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,955.66 : 796,550.04 = 390,287.82 : x
  2. Step 2: Convert to fraction form
    530,955.66/796,550.04 = 390,287.82/x
  3. Step 3: Cross multiply
    530,955.66x = 796,550.04 × 390,287.82
  4. Step 4: Simplify right side
    530,955.66x = 310,883,778,632.51
  5. Step 5: Solve for x
    x = 310,883,778,632.51/530,955.66
  6. Step 6: Final answer
    x = 585,517.40

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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.