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Finding the Fourth Proportional to 528,117.46, 728,607.09 and 364,763.14

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Solution

The fourth proportional to 528,117.46, 728,607.09 and 364,763.14 is: 503,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,117.46 : 728,607.09 = 364,763.14 : x
  2. Step 2: Convert to fraction form
    528,117.46/728,607.09 = 364,763.14/x
  3. Step 3: Cross multiply
    528,117.46x = 728,607.09 × 364,763.14
  4. Step 4: Simplify right side
    528,117.46x = 265,769,009,974.66
  5. Step 5: Solve for x
    x = 265,769,009,974.66/528,117.46
  6. Step 6: Final answer
    x = 503,238.45

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Double scale
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Similar ratio
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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.