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Finding the Fourth Proportional to 553,570.70, 830,356.05 and 548,905.10

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Solution

The fourth proportional to 553,570.70, 830,356.05 and 548,905.10 is: 823,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,570.70 : 830,356.05 = 548,905.10 : x
  2. Step 2: Convert to fraction form
    553,570.70/830,356.05 = 548,905.10/x
  3. Step 3: Cross multiply
    553,570.70x = 830,356.05 × 548,905.10
  4. Step 4: Simplify right side
    553,570.70x = 455,786,670,660.86
  5. Step 5: Solve for x
    x = 455,786,670,660.86/553,570.70
  6. Step 6: Final answer
    x = 823,357.65

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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.