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Finding the Fourth Proportional to 472,315.80, 708,692.40 and 247,929.60

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Solution

The fourth proportional to 472,315.80, 708,692.40 and 247,929.60 is: 372,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,315.80 : 708,692.40 = 247,929.60 : x
  2. Step 2: Convert to fraction form
    472,315.80/708,692.40 = 247,929.60/x
  3. Step 3: Cross multiply
    472,315.80x = 708,692.40 × 247,929.60
  4. Step 4: Simplify right side
    472,315.80x = 175,705,823,255.04
  5. Step 5: Solve for x
    x = 175,705,823,255.04/472,315.80
  6. Step 6: Final answer
    x = 372,009.20

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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.