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Finding the Fourth Proportional to 1,038,283, 1,432,830.56 and 561,355

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Solution

The fourth proportional to 1,038,283, 1,432,830.56 and 561,355 is: 774,669.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,283 : 1,432,830.56 = 561,355 : x
  2. Step 2: Convert to fraction form
    1,038,283/1,432,830.56 = 561,355/x
  3. Step 3: Cross multiply
    1,038,283x = 1,432,830.56 × 561,355
  4. Step 4: Simplify right side
    1,038,283x = 804,326,599,008.80
  5. Step 5: Solve for x
    x = 804,326,599,008.80/1,038,283
  6. Step 6: Final answer
    x = 774,669.91

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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.