Home / 811,874.04-1,119,646.14-697,116.72

Finding the Fourth Proportional to 811,874.04, 1,119,646.14 and 697,116.72

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Solution

The fourth proportional to 811,874.04, 1,119,646.14 and 697,116.72 is: 961,385.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,874.04 : 1,119,646.14 = 697,116.72 : x
  2. Step 2: Convert to fraction form
    811,874.04/1,119,646.14 = 697,116.72/x
  3. Step 3: Cross multiply
    811,874.04x = 1,119,646.14 × 697,116.72
  4. Step 4: Simplify right side
    811,874.04x = 780,524,044,677.46
  5. Step 5: Solve for x
    x = 780,524,044,677.46/811,874.04
  6. Step 6: Final answer
    x = 961,385.64

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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.