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Finding the Fourth Proportional to 665,058.40, 998,509.20 and 524,975.20

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Solution

The fourth proportional to 665,058.40, 998,509.20 and 524,975.20 is: 788,190.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,058.40 : 998,509.20 = 524,975.20 : x
  2. Step 2: Convert to fraction form
    665,058.40/998,509.20 = 524,975.20/x
  3. Step 3: Cross multiply
    665,058.40x = 998,509.20 × 524,975.20
  4. Step 4: Simplify right side
    665,058.40x = 524,192,566,971.84
  5. Step 5: Solve for x
    x = 524,192,566,971.84/665,058.40
  6. Step 6: Final answer
    x = 788,190.28

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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.