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Finding the Fourth Proportional to 564,918.40, 850,455.52 and 487,780.48

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Solution

The fourth proportional to 564,918.40, 850,455.52 and 487,780.48 is: 734,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,918.40 : 850,455.52 = 487,780.48 : x
  2. Step 2: Convert to fraction form
    564,918.40/850,455.52 = 487,780.48/x
  3. Step 3: Cross multiply
    564,918.40x = 850,455.52 × 487,780.48
  4. Step 4: Simplify right side
    564,918.40x = 414,835,601,764.25
  5. Step 5: Solve for x
    x = 414,835,601,764.25/564,918.40
  6. Step 6: Final answer
    x = 734,328.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.