Home / 1,038,440-1,433,047.20-561,512

Finding the Fourth Proportional to 1,038,440, 1,433,047.20 and 561,512

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Solution

The fourth proportional to 1,038,440, 1,433,047.20 and 561,512 is: 774,886.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,440 : 1,433,047.20 = 561,512 : x
  2. Step 2: Convert to fraction form
    1,038,440/1,433,047.20 = 561,512/x
  3. Step 3: Cross multiply
    1,038,440x = 1,433,047.20 × 561,512
  4. Step 4: Simplify right side
    1,038,440x = 804,673,199,366.40
  5. Step 5: Solve for x
    x = 804,673,199,366.40/1,038,440
  6. Step 6: Final answer
    x = 774,886.56

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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.