Home / 807,490.08-1,211,268.60-302,000.40

Finding the Fourth Proportional to 807,490.08, 1,211,268.60 and 302,000.40

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Solution

The fourth proportional to 807,490.08, 1,211,268.60 and 302,000.40 is: 453,013.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,490.08 : 1,211,268.60 = 302,000.40 : x
  2. Step 2: Convert to fraction form
    807,490.08/1,211,268.60 = 302,000.40/x
  3. Step 3: Cross multiply
    807,490.08x = 1,211,268.60 × 302,000.40
  4. Step 4: Simplify right side
    807,490.08x = 365,803,601,707.44
  5. Step 5: Solve for x
    x = 365,803,601,707.44/807,490.08
  6. Step 6: Final answer
    x = 453,013.12

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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.