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Finding the Fourth Proportional to 556,115.59, 767,409.67 and 314,383.75

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Solution

The fourth proportional to 556,115.59, 767,409.67 and 314,383.75 is: 433,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,115.59 : 767,409.67 = 314,383.75 : x
  2. Step 2: Convert to fraction form
    556,115.59/767,409.67 = 314,383.75/x
  3. Step 3: Cross multiply
    556,115.59x = 767,409.67 × 314,383.75
  4. Step 4: Simplify right side
    556,115.59x = 241,261,129,840.86
  5. Step 5: Solve for x
    x = 241,261,129,840.86/556,115.59
  6. Step 6: Final answer
    x = 433,832.70

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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.