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Finding the Fourth Proportional to 553,353.70, 830,030.55 and 548,688.10

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Solution

The fourth proportional to 553,353.70, 830,030.55 and 548,688.10 is: 823,032.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,353.70 : 830,030.55 = 548,688.10 : x
  2. Step 2: Convert to fraction form
    553,353.70/830,030.55 = 548,688.10/x
  3. Step 3: Cross multiply
    553,353.70x = 830,030.55 × 548,688.10
  4. Step 4: Simplify right side
    553,353.70x = 455,427,885,421.46
  5. Step 5: Solve for x
    x = 455,427,885,421.46/553,353.70
  6. Step 6: Final answer
    x = 823,032.15

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Similar ratio
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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.