Home / 809,010.18-1,116,541.26-486,899.10

Finding the Fourth Proportional to 809,010.18, 1,116,541.26 and 486,899.10

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Solution

The fourth proportional to 809,010.18, 1,116,541.26 and 486,899.10 is: 671,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,010.18 : 1,116,541.26 = 486,899.10 : x
  2. Step 2: Convert to fraction form
    809,010.18/1,116,541.26 = 486,899.10/x
  3. Step 3: Cross multiply
    809,010.18x = 1,116,541.26 × 486,899.10
  4. Step 4: Simplify right side
    809,010.18x = 543,642,934,606.87
  5. Step 5: Solve for x
    x = 543,642,934,606.87/809,010.18
  6. Step 6: Final answer
    x = 671,985.28

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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.