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Finding the Fourth Proportional to 559,655.16, 772,301.58 and 305,000.84

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Solution

The fourth proportional to 559,655.16, 772,301.58 and 305,000.84 is: 420,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,655.16 : 772,301.58 = 305,000.84 : x
  2. Step 2: Convert to fraction form
    559,655.16/772,301.58 = 305,000.84/x
  3. Step 3: Cross multiply
    559,655.16x = 772,301.58 × 305,000.84
  4. Step 4: Simplify right side
    559,655.16x = 235,552,630,633.33
  5. Step 5: Solve for x
    x = 235,552,630,633.33/559,655.16
  6. Step 6: Final answer
    x = 420,888.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.