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Finding the Fourth Proportional to 626,612.34, 864,726.06 and 340,132.35

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Solution

The fourth proportional to 626,612.34, 864,726.06 and 340,132.35 is: 469,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,612.34 : 864,726.06 = 340,132.35 : x
  2. Step 2: Convert to fraction form
    626,612.34/864,726.06 = 340,132.35/x
  3. Step 3: Cross multiply
    626,612.34x = 864,726.06 × 340,132.35
  4. Step 4: Simplify right side
    626,612.34x = 294,121,306,894.04
  5. Step 5: Solve for x
    x = 294,121,306,894.04/626,612.34
  6. Step 6: Final answer
    x = 469,383.20

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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.