Home / 1,038,330-1,432,895.40-561,402

Finding the Fourth Proportional to 1,038,330, 1,432,895.40 and 561,402

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Solution

The fourth proportional to 1,038,330, 1,432,895.40 and 561,402 is: 774,734.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,330 : 1,432,895.40 = 561,402 : x
  2. Step 2: Convert to fraction form
    1,038,330/1,432,895.40 = 561,402/x
  3. Step 3: Cross multiply
    1,038,330x = 1,432,895.40 × 561,402
  4. Step 4: Simplify right side
    1,038,330x = 804,430,343,350.80
  5. Step 5: Solve for x
    x = 804,430,343,350.80/1,038,330
  6. Step 6: Final answer
    x = 774,734.76

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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.