Home / 1,079,451.86-1,489,019.07-697,478.63

Finding the Fourth Proportional to 1,079,451.86, 1,489,019.07 and 697,478.63

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Solution

The fourth proportional to 1,079,451.86, 1,489,019.07 and 697,478.63 is: 962,117.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,451.86 : 1,489,019.07 = 697,478.63 : x
  2. Step 2: Convert to fraction form
    1,079,451.86/1,489,019.07 = 697,478.63/x
  3. Step 3: Cross multiply
    1,079,451.86x = 1,489,019.07 × 697,478.63
  4. Step 4: Simplify right side
    1,079,451.86x = 1,038,558,980,987.47
  5. Step 5: Solve for x
    x = 1,038,558,980,987.47/1,079,451.86
  6. Step 6: Final answer
    x = 962,117.00

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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.