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Finding the Fourth Proportional to 384,703.20, 577,054.80 and 366,332.40

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Solution

The fourth proportional to 384,703.20, 577,054.80 and 366,332.40 is: 549,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,703.20 : 577,054.80 = 366,332.40 : x
  2. Step 2: Convert to fraction form
    384,703.20/577,054.80 = 366,332.40/x
  3. Step 3: Cross multiply
    384,703.20x = 577,054.80 × 366,332.40
  4. Step 4: Simplify right side
    384,703.20x = 211,393,869,815.52
  5. Step 5: Solve for x
    x = 211,393,869,815.52/384,703.20
  6. Step 6: Final answer
    x = 549,498.60

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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.