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Finding the Fourth Proportional to 556,147.55, 767,489.66 and 326,714.51

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Solution

The fourth proportional to 556,147.55, 767,489.66 and 326,714.51 is: 450,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,147.55 : 767,489.66 = 326,714.51 : x
  2. Step 2: Convert to fraction form
    556,147.55/767,489.66 = 326,714.51/x
  3. Step 3: Cross multiply
    556,147.55x = 767,489.66 × 326,714.51
  4. Step 4: Simplify right side
    556,147.55x = 250,750,002,725.95
  5. Step 5: Solve for x
    x = 250,750,002,725.95/556,147.55
  6. Step 6: Final answer
    x = 450,869.57

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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.