Home / 808,072.47-1,115,130.92-463,916.57

Finding the Fourth Proportional to 808,072.47, 1,115,130.92 and 463,916.57

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Solution

The fourth proportional to 808,072.47, 1,115,130.92 and 463,916.57 is: 640,199.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,072.47 : 1,115,130.92 = 463,916.57 : x
  2. Step 2: Convert to fraction form
    808,072.47/1,115,130.92 = 463,916.57/x
  3. Step 3: Cross multiply
    808,072.47x = 1,115,130.92 × 463,916.57
  4. Step 4: Simplify right side
    808,072.47x = 517,327,703,612.11
  5. Step 5: Solve for x
    x = 517,327,703,612.11/808,072.47
  6. Step 6: Final answer
    x = 640,199.64

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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.