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Finding the Fourth Proportional to 552,095.60, 761,874.20 and 310,388.32

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Solution

The fourth proportional to 552,095.60, 761,874.20 and 310,388.32 is: 428,325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,095.60 : 761,874.20 = 310,388.32 : x
  2. Step 2: Convert to fraction form
    552,095.60/761,874.20 = 310,388.32/x
  3. Step 3: Cross multiply
    552,095.60x = 761,874.20 × 310,388.32
  4. Step 4: Simplify right side
    552,095.60x = 236,476,852,989.34
  5. Step 5: Solve for x
    x = 236,476,852,989.34/552,095.60
  6. Step 6: Final answer
    x = 428,325.91

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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.