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Finding the Fourth Proportional to 497,297.60, 744,196.80 and 455,307.20

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Solution

The fourth proportional to 497,297.60, 744,196.80 and 455,307.20 is: 681,358.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,297.60 : 744,196.80 = 455,307.20 : x
  2. Step 2: Convert to fraction form
    497,297.60/744,196.80 = 455,307.20/x
  3. Step 3: Cross multiply
    497,297.60x = 744,196.80 × 455,307.20
  4. Step 4: Simplify right side
    497,297.60x = 338,838,161,256.96
  5. Step 5: Solve for x
    x = 338,838,161,256.96/497,297.60
  6. Step 6: Final answer
    x = 681,358.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.