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Finding the Fourth Proportional to 660,271.70, 987,496.57 and 574,789.16

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Solution

The fourth proportional to 660,271.70, 987,496.57 and 574,789.16 is: 859,649.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,271.70 : 987,496.57 = 574,789.16 : x
  2. Step 2: Convert to fraction form
    660,271.70/987,496.57 = 574,789.16/x
  3. Step 3: Cross multiply
    660,271.70x = 987,496.57 × 574,789.16
  4. Step 4: Simplify right side
    660,271.70x = 567,602,323,927.22
  5. Step 5: Solve for x
    x = 567,602,323,927.22/660,271.70
  6. Step 6: Final answer
    x = 859,649.63

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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.