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Finding the Fourth Proportional to 553,347.70, 830,021.55 and 548,682.10

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Solution

The fourth proportional to 553,347.70, 830,021.55 and 548,682.10 is: 823,023.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,347.70 : 830,021.55 = 548,682.10 : x
  2. Step 2: Convert to fraction form
    553,347.70/830,021.55 = 548,682.10/x
  3. Step 3: Cross multiply
    553,347.70x = 830,021.55 × 548,682.10
  4. Step 4: Simplify right side
    553,347.70x = 455,417,967,099.26
  5. Step 5: Solve for x
    x = 455,417,967,099.26/553,347.70
  6. Step 6: Final answer
    x = 823,023.15

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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.