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Finding the Fourth Proportional to 559,751.51, 772,457.29 and 318,034.40

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Solution

The fourth proportional to 559,751.51, 772,457.29 and 318,034.40 is: 438,887.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,751.51 : 772,457.29 = 318,034.40 : x
  2. Step 2: Convert to fraction form
    559,751.51/772,457.29 = 318,034.40/x
  3. Step 3: Cross multiply
    559,751.51x = 772,457.29 × 318,034.40
  4. Step 4: Simplify right side
    559,751.51x = 245,667,992,227.42
  5. Step 5: Solve for x
    x = 245,667,992,227.42/559,751.51
  6. Step 6: Final answer
    x = 438,887.59

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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.