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Finding the Fourth Proportional to 651,971.16, 899,763.39 and 365,509.80

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Solution

The fourth proportional to 651,971.16, 899,763.39 and 365,509.80 is: 504,427.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,971.16 : 899,763.39 = 365,509.80 : x
  2. Step 2: Convert to fraction form
    651,971.16/899,763.39 = 365,509.80/x
  3. Step 3: Cross multiply
    651,971.16x = 899,763.39 × 365,509.80
  4. Step 4: Simplify right side
    651,971.16x = 328,872,336,726.22
  5. Step 5: Solve for x
    x = 328,872,336,726.22/651,971.16
  6. Step 6: Final answer
    x = 504,427.74

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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.