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Finding the Fourth Proportional to 955,803, 1,319,008.14 and 553,395

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Solution

The fourth proportional to 955,803, 1,319,008.14 and 553,395 is: 763,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,803 : 1,319,008.14 = 553,395 : x
  2. Step 2: Convert to fraction form
    955,803/1,319,008.14 = 553,395/x
  3. Step 3: Cross multiply
    955,803x = 1,319,008.14 × 553,395
  4. Step 4: Simplify right side
    955,803x = 729,932,509,635.30
  5. Step 5: Solve for x
    x = 729,932,509,635.30/955,803
  6. Step 6: Final answer
    x = 763,685.10

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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.