Home / 1,225,445.66-1,690,996.54-709,096.55

Finding the Fourth Proportional to 1,225,445.66, 1,690,996.54 and 709,096.55

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Solution

The fourth proportional to 1,225,445.66, 1,690,996.54 and 709,096.55 is: 978,484.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,445.66 : 1,690,996.54 = 709,096.55 : x
  2. Step 2: Convert to fraction form
    1,225,445.66/1,690,996.54 = 709,096.55/x
  3. Step 3: Cross multiply
    1,225,445.66x = 1,690,996.54 × 709,096.55
  4. Step 4: Simplify right side
    1,225,445.66x = 1,199,079,813,701.13
  5. Step 5: Solve for x
    x = 1,199,079,813,701.13/1,225,445.66
  6. Step 6: Final answer
    x = 978,484.69

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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.