Home / 432,628.80-648,943.20-283,329.60

Finding the Fourth Proportional to 432,628.80, 648,943.20 and 283,329.60

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Solution

The fourth proportional to 432,628.80, 648,943.20 and 283,329.60 is: 424,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,628.80 : 648,943.20 = 283,329.60 : x
  2. Step 2: Convert to fraction form
    432,628.80/648,943.20 = 283,329.60/x
  3. Step 3: Cross multiply
    432,628.80x = 648,943.20 × 283,329.60
  4. Step 4: Simplify right side
    432,628.80x = 183,864,817,278.72
  5. Step 5: Solve for x
    x = 183,864,817,278.72/432,628.80
  6. Step 6: Final answer
    x = 424,994.40

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Similar ratio
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1.5x scale

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.