Home / 549,861.20-824,004.60-312,702.80

Finding the Fourth Proportional to 549,861.20, 824,004.60 and 312,702.80

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Solution

The fourth proportional to 549,861.20, 824,004.60 and 312,702.80 is: 468,606.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,861.20 : 824,004.60 = 312,702.80 : x
  2. Step 2: Convert to fraction form
    549,861.20/824,004.60 = 312,702.80/x
  3. Step 3: Cross multiply
    549,861.20x = 824,004.60 × 312,702.80
  4. Step 4: Simplify right side
    549,861.20x = 257,668,545,632.88
  5. Step 5: Solve for x
    x = 257,668,545,632.88/549,861.20
  6. Step 6: Final answer
    x = 468,606.52

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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.