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Finding the Fourth Proportional to 528,015.84, 728,700.48 and 301,656.48

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Solution

The fourth proportional to 528,015.84, 728,700.48 and 301,656.48 is: 416,308.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,015.84 : 728,700.48 = 301,656.48 : x
  2. Step 2: Convert to fraction form
    528,015.84/728,700.48 = 301,656.48/x
  3. Step 3: Cross multiply
    528,015.84x = 728,700.48 × 301,656.48
  4. Step 4: Simplify right side
    528,015.84x = 219,817,221,771.11
  5. Step 5: Solve for x
    x = 219,817,221,771.11/528,015.84
  6. Step 6: Final answer
    x = 416,308.01

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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.