Home / 514,045.06-771,288.12-198,723.40

Finding the Fourth Proportional to 514,045.06, 771,288.12 and 198,723.40

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Solution

The fourth proportional to 514,045.06, 771,288.12 and 198,723.40 is: 298,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,045.06 : 771,288.12 = 198,723.40 : x
  2. Step 2: Convert to fraction form
    514,045.06/771,288.12 = 198,723.40/x
  3. Step 3: Cross multiply
    514,045.06x = 771,288.12 × 198,723.40
  4. Step 4: Simplify right side
    514,045.06x = 153,272,997,586.01
  5. Step 5: Solve for x
    x = 153,272,997,586.01/514,045.06
  6. Step 6: Final answer
    x = 298,170.35

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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.