Home / 926,513.70-1,387,960.54-638,274.48

Finding the Fourth Proportional to 926,513.70, 1,387,960.54 and 638,274.48

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Solution

The fourth proportional to 926,513.70, 1,387,960.54 and 638,274.48 is: 956,164.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,513.70 : 1,387,960.54 = 638,274.48 : x
  2. Step 2: Convert to fraction form
    926,513.70/1,387,960.54 = 638,274.48/x
  3. Step 3: Cross multiply
    926,513.70x = 1,387,960.54 × 638,274.48
  4. Step 4: Simplify right side
    926,513.70x = 885,899,791,929.02
  5. Step 5: Solve for x
    x = 885,899,791,929.02/926,513.70
  6. Step 6: Final answer
    x = 956,164.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.