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Finding the Fourth Proportional to 651,670.90, 899,410.16 and 379,897.88

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Solution

The fourth proportional to 651,670.90, 899,410.16 and 379,897.88 is: 524,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,670.90 : 899,410.16 = 379,897.88 : x
  2. Step 2: Convert to fraction form
    651,670.90/899,410.16 = 379,897.88/x
  3. Step 3: Cross multiply
    651,670.90x = 899,410.16 × 379,897.88
  4. Step 4: Simplify right side
    651,670.90x = 341,684,013,034.46
  5. Step 5: Solve for x
    x = 341,684,013,034.46/651,670.90
  6. Step 6: Final answer
    x = 524,319.89

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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.