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Finding the Fourth Proportional to 570,559.39, 787,372.02 and 315,910.58

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Solution

The fourth proportional to 570,559.39, 787,372.02 and 315,910.58 is: 435,956.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,559.39 : 787,372.02 = 315,910.58 : x
  2. Step 2: Convert to fraction form
    570,559.39/787,372.02 = 315,910.58/x
  3. Step 3: Cross multiply
    570,559.39x = 787,372.02 × 315,910.58
  4. Step 4: Simplify right side
    570,559.39x = 248,739,151,117.58
  5. Step 5: Solve for x
    x = 248,739,151,117.58/570,559.39
  6. Step 6: Final answer
    x = 435,956.63

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1.5x scale

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.