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Finding the Fourth Proportional to 553,439.83, 758,765.30 and 543,350.74

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Solution

The fourth proportional to 553,439.83, 758,765.30 and 543,350.74 is: 744,933.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,439.83 : 758,765.30 = 543,350.74 : x
  2. Step 2: Convert to fraction form
    553,439.83/758,765.30 = 543,350.74/x
  3. Step 3: Cross multiply
    553,439.83x = 758,765.30 × 543,350.74
  4. Step 4: Simplify right side
    553,439.83x = 412,275,683,447.50
  5. Step 5: Solve for x
    x = 412,275,683,447.50/553,439.83
  6. Step 6: Final answer
    x = 744,933.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.