Home / 843,137.49-1,264,722.64-310,384.29

Finding the Fourth Proportional to 843,137.49, 1,264,722.64 and 310,384.29

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Solution

The fourth proportional to 843,137.49, 1,264,722.64 and 310,384.29 is: 465,582.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,137.49 : 1,264,722.64 = 310,384.29 : x
  2. Step 2: Convert to fraction form
    843,137.49/1,264,722.64 = 310,384.29/x
  3. Step 3: Cross multiply
    843,137.49x = 1,264,722.64 × 310,384.29
  4. Step 4: Simplify right side
    843,137.49x = 392,550,038,663.33
  5. Step 5: Solve for x
    x = 392,550,038,663.33/843,137.49
  6. Step 6: Final answer
    x = 465,582.47

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1.5x scale

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.