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Finding the Fourth Proportional to 917,393.98, 1,373,995.88 and 437,959.02

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Solution

The fourth proportional to 917,393.98, 1,373,995.88 and 437,959.02 is: 655,938.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,393.98 : 1,373,995.88 = 437,959.02 : x
  2. Step 2: Convert to fraction form
    917,393.98/1,373,995.88 = 437,959.02/x
  3. Step 3: Cross multiply
    917,393.98x = 1,373,995.88 × 437,959.02
  4. Step 4: Simplify right side
    917,393.98x = 601,753,889,088.84
  5. Step 5: Solve for x
    x = 601,753,889,088.84/917,393.98
  6. Step 6: Final answer
    x = 655,938.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.