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Finding the Fourth Proportional to 556,273.49, 767,672.51 and 314,592.20

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Solution

The fourth proportional to 556,273.49, 767,672.51 and 314,592.20 is: 434,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,273.49 : 767,672.51 = 314,592.20 : x
  2. Step 2: Convert to fraction form
    556,273.49/767,672.51 = 314,592.20/x
  3. Step 3: Cross multiply
    556,273.49x = 767,672.51 × 314,592.20
  4. Step 4: Simplify right side
    556,273.49x = 241,503,784,146.64
  5. Step 5: Solve for x
    x = 241,503,784,146.64/556,273.49
  6. Step 6: Final answer
    x = 434,145.77

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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.