Home / 1,020,707.82-1,408,565.64-561,812.58

Finding the Fourth Proportional to 1,020,707.82, 1,408,565.64 and 561,812.58

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Solution

The fourth proportional to 1,020,707.82, 1,408,565.64 and 561,812.58 is: 775,295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,707.82 : 1,408,565.64 = 561,812.58 : x
  2. Step 2: Convert to fraction form
    1,020,707.82/1,408,565.64 = 561,812.58/x
  3. Step 3: Cross multiply
    1,020,707.82x = 1,408,565.64 × 561,812.58
  4. Step 4: Simplify right side
    1,020,707.82x = 791,349,896,307.75
  5. Step 5: Solve for x
    x = 791,349,896,307.75/1,020,707.82
  6. Step 6: Final answer
    x = 775,295.22

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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.