Home / 810,910.30-1,118,970.48-448,275.70

Finding the Fourth Proportional to 810,910.30, 1,118,970.48 and 448,275.70

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Solution

The fourth proportional to 810,910.30, 1,118,970.48 and 448,275.70 is: 618,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,910.30 : 1,118,970.48 = 448,275.70 : x
  2. Step 2: Convert to fraction form
    810,910.30/1,118,970.48 = 448,275.70/x
  3. Step 3: Cross multiply
    810,910.30x = 1,118,970.48 × 448,275.70
  4. Step 4: Simplify right side
    810,910.30x = 501,607,275,201.34
  5. Step 5: Solve for x
    x = 501,607,275,201.34/810,910.30
  6. Step 6: Final answer
    x = 618,573.07

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1.5x scale

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.