Home / 1,119,873.69-1,545,381.18-661,136.07

Finding the Fourth Proportional to 1,119,873.69, 1,545,381.18 and 661,136.07

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Solution

The fourth proportional to 1,119,873.69, 1,545,381.18 and 661,136.07 is: 912,341.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,873.69 : 1,545,381.18 = 661,136.07 : x
  2. Step 2: Convert to fraction form
    1,119,873.69/1,545,381.18 = 661,136.07/x
  3. Step 3: Cross multiply
    1,119,873.69x = 1,545,381.18 × 661,136.07
  4. Step 4: Simplify right side
    1,119,873.69x = 1,021,707,239,997.16
  5. Step 5: Solve for x
    x = 1,021,707,239,997.16/1,119,873.69
  6. Step 6: Final answer
    x = 912,341.50

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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.