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Finding the Fourth Proportional to 553,332.40, 829,998.60 and 549,185.20

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Solution

The fourth proportional to 553,332.40, 829,998.60 and 549,185.20 is: 823,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,332.40 : 829,998.60 = 549,185.20 : x
  2. Step 2: Convert to fraction form
    553,332.40/829,998.60 = 549,185.20/x
  3. Step 3: Cross multiply
    553,332.40x = 829,998.60 × 549,185.20
  4. Step 4: Simplify right side
    553,332.40x = 455,822,947,140.72
  5. Step 5: Solve for x
    x = 455,822,947,140.72/553,332.40
  6. Step 6: Final answer
    x = 823,777.80

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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.