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Finding the Fourth Proportional to 553,677.70, 830,516.55 and 548,428.90

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Solution

The fourth proportional to 553,677.70, 830,516.55 and 548,428.90 is: 822,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,677.70 : 830,516.55 = 548,428.90 : x
  2. Step 2: Convert to fraction form
    553,677.70/830,516.55 = 548,428.90/x
  3. Step 3: Cross multiply
    553,677.70x = 830,516.55 × 548,428.90
  4. Step 4: Simplify right side
    553,677.70x = 455,479,277,948.30
  5. Step 5: Solve for x
    x = 455,479,277,948.30/553,677.70
  6. Step 6: Final answer
    x = 822,643.35

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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.