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Finding the Fourth Proportional to 660,072.16, 910,743.44 and 373,592.24

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Solution

The fourth proportional to 660,072.16, 910,743.44 and 373,592.24 is: 515,468.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,072.16 : 910,743.44 = 373,592.24 : x
  2. Step 2: Convert to fraction form
    660,072.16/910,743.44 = 373,592.24/x
  3. Step 3: Cross multiply
    660,072.16x = 910,743.44 × 373,592.24
  4. Step 4: Simplify right side
    660,072.16x = 340,246,681,814.91
  5. Step 5: Solve for x
    x = 340,246,681,814.91/660,072.16
  6. Step 6: Final answer
    x = 515,468.92

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1.5x scale

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.