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Finding the Fourth Proportional to 553,313.70, 829,970.55 and 366,325.20

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Solution

The fourth proportional to 553,313.70, 829,970.55 and 366,325.20 is: 549,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,313.70 : 829,970.55 = 366,325.20 : x
  2. Step 2: Convert to fraction form
    553,313.70/829,970.55 = 366,325.20/x
  3. Step 3: Cross multiply
    553,313.70x = 829,970.55 × 366,325.20
  4. Step 4: Simplify right side
    553,313.70x = 304,039,127,722.86
  5. Step 5: Solve for x
    x = 304,039,127,722.86/553,313.70
  6. Step 6: Final answer
    x = 549,487.80

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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.