Home / 1,387,024.65-1,913,553.33-870,477.12

Finding the Fourth Proportional to 1,387,024.65, 1,913,553.33 and 870,477.12

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Solution

The fourth proportional to 1,387,024.65, 1,913,553.33 and 870,477.12 is: 1,200,919.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,024.65 : 1,913,553.33 = 870,477.12 : x
  2. Step 2: Convert to fraction form
    1,387,024.65/1,913,553.33 = 870,477.12/x
  3. Step 3: Cross multiply
    1,387,024.65x = 1,913,553.33 × 870,477.12
  4. Step 4: Simplify right side
    1,387,024.65x = 1,665,704,391,664.81
  5. Step 5: Solve for x
    x = 1,665,704,391,664.81/1,387,024.65
  6. Step 6: Final answer
    x = 1,200,919.10

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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.