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Finding the Fourth Proportional to 559,507.76, 839,267.60 and 447,897.60

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Solution

The fourth proportional to 559,507.76, 839,267.60 and 447,897.60 is: 671,851.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,507.76 : 839,267.60 = 447,897.60 : x
  2. Step 2: Convert to fraction form
    559,507.76/839,267.60 = 447,897.60/x
  3. Step 3: Cross multiply
    559,507.76x = 839,267.60 × 447,897.60
  4. Step 4: Simplify right side
    559,507.76x = 375,905,943,797.76
  5. Step 5: Solve for x
    x = 375,905,943,797.76/559,507.76
  6. Step 6: Final answer
    x = 671,851.17

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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.