Home / 679,316.07-1,017,411.75-394,300.74

Finding the Fourth Proportional to 679,316.07, 1,017,411.75 and 394,300.74

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Solution

The fourth proportional to 679,316.07, 1,017,411.75 and 394,300.74 is: 590,544.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,316.07 : 1,017,411.75 = 394,300.74 : x
  2. Step 2: Convert to fraction form
    679,316.07/1,017,411.75 = 394,300.74/x
  3. Step 3: Cross multiply
    679,316.07x = 1,017,411.75 × 394,300.74
  4. Step 4: Simplify right side
    679,316.07x = 401,166,205,909.70
  5. Step 5: Solve for x
    x = 401,166,205,909.70/679,316.07
  6. Step 6: Final answer
    x = 590,544.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.