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Finding the Fourth Proportional to 626,646.51, 864,773.28 and 340,166.79

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Solution

The fourth proportional to 626,646.51, 864,773.28 and 340,166.79 is: 469,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,646.51 : 864,773.28 = 340,166.79 : x
  2. Step 2: Convert to fraction form
    626,646.51/864,773.28 = 340,166.79/x
  3. Step 3: Cross multiply
    626,646.51x = 864,773.28 × 340,166.79
  4. Step 4: Simplify right side
    626,646.51x = 294,167,150,735.37
  5. Step 5: Solve for x
    x = 294,167,150,735.37/626,646.51
  6. Step 6: Final answer
    x = 469,430.77

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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.