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Finding the Fourth Proportional to 626,982.32, 865,235.40 and 340,502.48

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Solution

The fourth proportional to 626,982.32, 865,235.40 and 340,502.48 is: 469,893.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,982.32 : 865,235.40 = 340,502.48 : x
  2. Step 2: Convert to fraction form
    626,982.32/865,235.40 = 340,502.48/x
  3. Step 3: Cross multiply
    626,982.32x = 865,235.40 × 340,502.48
  4. Step 4: Simplify right side
    626,982.32x = 294,614,799,483.79
  5. Step 5: Solve for x
    x = 294,614,799,483.79/626,982.32
  6. Step 6: Final answer
    x = 469,893.31

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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.