Home / 1,038,320-1,432,881.60-561,392

Finding the Fourth Proportional to 1,038,320, 1,432,881.60 and 561,392

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Solution

The fourth proportional to 1,038,320, 1,432,881.60 and 561,392 is: 774,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,320 : 1,432,881.60 = 561,392 : x
  2. Step 2: Convert to fraction form
    1,038,320/1,432,881.60 = 561,392/x
  3. Step 3: Cross multiply
    1,038,320x = 1,432,881.60 × 561,392
  4. Step 4: Simplify right side
    1,038,320x = 804,408,267,187.20
  5. Step 5: Solve for x
    x = 804,408,267,187.20/1,038,320
  6. Step 6: Final answer
    x = 774,720.96

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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.