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Finding the Fourth Proportional to 626,543.16, 864,630.51 and 340,063.35

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Solution

The fourth proportional to 626,543.16, 864,630.51 and 340,063.35 is: 469,287.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,543.16 : 864,630.51 = 340,063.35 : x
  2. Step 2: Convert to fraction form
    626,543.16/864,630.51 = 340,063.35/x
  3. Step 3: Cross multiply
    626,543.16x = 864,630.51 × 340,063.35
  4. Step 4: Simplify right side
    626,543.16x = 294,029,147,742.81
  5. Step 5: Solve for x
    x = 294,029,147,742.81/626,543.16
  6. Step 6: Final answer
    x = 469,287.94

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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.