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Finding the Fourth Proportional to 552,070.64, 761,804.52 and 310,297.52

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Solution

The fourth proportional to 552,070.64, 761,804.52 and 310,297.52 is: 428,180.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,070.64 : 761,804.52 = 310,297.52 : x
  2. Step 2: Convert to fraction form
    552,070.64/761,804.52 = 310,297.52/x
  3. Step 3: Cross multiply
    552,070.64x = 761,804.52 × 310,297.52
  4. Step 4: Simplify right side
    552,070.64x = 236,386,053,280.79
  5. Step 5: Solve for x
    x = 236,386,053,280.79/552,070.64
  6. Step 6: Final answer
    x = 428,180.81

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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.