Home / 1,020,708.10-1,408,566-561,812.86

Finding the Fourth Proportional to 1,020,708.10, 1,408,566 and 561,812.86

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Solution

The fourth proportional to 1,020,708.10, 1,408,566 and 561,812.86 is: 775,295.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,708.10 : 1,408,566 = 561,812.86 : x
  2. Step 2: Convert to fraction form
    1,020,708.10/1,408,566 = 561,812.86/x
  3. Step 3: Cross multiply
    1,020,708.10x = 1,408,566 × 561,812.86
  4. Step 4: Simplify right side
    1,020,708.10x = 791,350,492,958.76
  5. Step 5: Solve for x
    x = 791,350,492,958.76/1,020,708.10
  6. Step 6: Final answer
    x = 775,295.59

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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.