Home / 812,051.02-1,119,885.78-697,290.62

Finding the Fourth Proportional to 812,051.02, 1,119,885.78 and 697,290.62

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Solution

The fourth proportional to 812,051.02, 1,119,885.78 and 697,290.62 is: 961,621.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,051.02 : 1,119,885.78 = 697,290.62 : x
  2. Step 2: Convert to fraction form
    812,051.02/1,119,885.78 = 697,290.62/x
  3. Step 3: Cross multiply
    812,051.02x = 1,119,885.78 × 697,290.62
  4. Step 4: Simplify right side
    812,051.02x = 780,885,849,865.38
  5. Step 5: Solve for x
    x = 780,885,849,865.38/812,051.02
  6. Step 6: Final answer
    x = 961,621.66

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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.