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Finding the Fourth Proportional to 553,291.20, 829,936.80 and 366,302.70

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Solution

The fourth proportional to 553,291.20, 829,936.80 and 366,302.70 is: 549,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,291.20 : 829,936.80 = 366,302.70 : x
  2. Step 2: Convert to fraction form
    553,291.20/829,936.80 = 366,302.70/x
  3. Step 3: Cross multiply
    553,291.20x = 829,936.80 × 366,302.70
  4. Step 4: Simplify right side
    553,291.20x = 304,008,090,669.36
  5. Step 5: Solve for x
    x = 304,008,090,669.36/553,291.20
  6. Step 6: Final answer
    x = 549,454.05

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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.