Home / 910,650.47-1,256,739.71-502,810.20

Finding the Fourth Proportional to 910,650.47, 1,256,739.71 and 502,810.20

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Solution

The fourth proportional to 910,650.47, 1,256,739.71 and 502,810.20 is: 693,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,650.47 : 1,256,739.71 = 502,810.20 : x
  2. Step 2: Convert to fraction form
    910,650.47/1,256,739.71 = 502,810.20/x
  3. Step 3: Cross multiply
    910,650.47x = 1,256,739.71 × 502,810.20
  4. Step 4: Simplify right side
    910,650.47x = 631,901,542,418.99
  5. Step 5: Solve for x
    x = 631,901,542,418.99/910,650.47
  6. Step 6: Final answer
    x = 693,901.30

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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.