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Finding the Fourth Proportional to 612,714.32, 845,537.64 and 344,442.32

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Solution

The fourth proportional to 612,714.32, 845,537.64 and 344,442.32 is: 475,325.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,714.32 : 845,537.64 = 344,442.32 : x
  2. Step 2: Convert to fraction form
    612,714.32/845,537.64 = 344,442.32/x
  3. Step 3: Cross multiply
    612,714.32x = 845,537.64 × 344,442.32
  4. Step 4: Simplify right side
    612,714.32x = 291,238,946,368.93
  5. Step 5: Solve for x
    x = 291,238,946,368.93/612,714.32
  6. Step 6: Final answer
    x = 475,325.84

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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.