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Finding the Fourth Proportional to 709,714.35, 979,274.76 and 403,772.87

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Solution

The fourth proportional to 709,714.35, 979,274.76 and 403,772.87 is: 557,132.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,714.35 : 979,274.76 = 403,772.87 : x
  2. Step 2: Convert to fraction form
    709,714.35/979,274.76 = 403,772.87/x
  3. Step 3: Cross multiply
    709,714.35x = 979,274.76 × 403,772.87
  4. Step 4: Simplify right side
    709,714.35x = 395,404,575,467.39
  5. Step 5: Solve for x
    x = 395,404,575,467.39/709,714.35
  6. Step 6: Final answer
    x = 557,132.00

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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.