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Finding the Fourth Proportional to 1,038,438, 1,433,044.44 and 561,510

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Solution

The fourth proportional to 1,038,438, 1,433,044.44 and 561,510 is: 774,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,438 : 1,433,044.44 = 561,510 : x
  2. Step 2: Convert to fraction form
    1,038,438/1,433,044.44 = 561,510/x
  3. Step 3: Cross multiply
    1,038,438x = 1,433,044.44 × 561,510
  4. Step 4: Simplify right side
    1,038,438x = 804,668,783,504.40
  5. Step 5: Solve for x
    x = 804,668,783,504.40/1,038,438
  6. Step 6: Final answer
    x = 774,883.80

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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.