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Finding the Fourth Proportional to 655,335.77, 903,897.41 and 437,434.56

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Solution

The fourth proportional to 655,335.77, 903,897.41 and 437,434.56 is: 603,348.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,335.77 : 903,897.41 = 437,434.56 : x
  2. Step 2: Convert to fraction form
    655,335.77/903,897.41 = 437,434.56/x
  3. Step 3: Cross multiply
    655,335.77x = 903,897.41 × 437,434.56
  4. Step 4: Simplify right side
    655,335.77x = 395,395,966,101.89
  5. Step 5: Solve for x
    x = 395,395,966,101.89/655,335.77
  6. Step 6: Final answer
    x = 603,348.67

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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.