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Finding the Fourth Proportional to 556,754.64, 768,071.88 and 375,407.52

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Solution

The fourth proportional to 556,754.64, 768,071.88 and 375,407.52 is: 517,894.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,754.64 : 768,071.88 = 375,407.52 : x
  2. Step 2: Convert to fraction form
    556,754.64/768,071.88 = 375,407.52/x
  3. Step 3: Cross multiply
    556,754.64x = 768,071.88 × 375,407.52
  4. Step 4: Simplify right side
    556,754.64x = 288,339,959,652.54
  5. Step 5: Solve for x
    x = 288,339,959,652.54/556,754.64
  6. Step 6: Final answer
    x = 517,894.13

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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.