Home / 687,079.40-1,030,619.10-610,971.80

Finding the Fourth Proportional to 687,079.40, 1,030,619.10 and 610,971.80

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Solution

The fourth proportional to 687,079.40, 1,030,619.10 and 610,971.80 is: 916,457.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,079.40 : 1,030,619.10 = 610,971.80 : x
  2. Step 2: Convert to fraction form
    687,079.40/1,030,619.10 = 610,971.80/x
  3. Step 3: Cross multiply
    687,079.40x = 1,030,619.10 × 610,971.80
  4. Step 4: Simplify right side
    687,079.40x = 629,679,206,641.38
  5. Step 5: Solve for x
    x = 629,679,206,641.38/687,079.40
  6. Step 6: Final answer
    x = 916,457.70

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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.