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Finding the Fourth Proportional to 570,111.52, 786,742.80 and 315,462.88

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Solution

The fourth proportional to 570,111.52, 786,742.80 and 315,462.88 is: 435,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,111.52 : 786,742.80 = 315,462.88 : x
  2. Step 2: Convert to fraction form
    570,111.52/786,742.80 = 315,462.88/x
  3. Step 3: Cross multiply
    570,111.52x = 786,742.80 × 315,462.88
  4. Step 4: Simplify right side
    570,111.52x = 248,188,149,507.26
  5. Step 5: Solve for x
    x = 248,188,149,507.26/570,111.52
  6. Step 6: Final answer
    x = 435,332.63

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