Home / 898,617.44-1,240,085.76-490,719.28

Finding the Fourth Proportional to 898,617.44, 1,240,085.76 and 490,719.28

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Solution

The fourth proportional to 898,617.44, 1,240,085.76 and 490,719.28 is: 677,189.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,617.44 : 1,240,085.76 = 490,719.28 : x
  2. Step 2: Convert to fraction form
    898,617.44/1,240,085.76 = 490,719.28/x
  3. Step 3: Cross multiply
    898,617.44x = 1,240,085.76 × 490,719.28
  4. Step 4: Simplify right side
    898,617.44x = 608,533,988,185.24
  5. Step 5: Solve for x
    x = 608,533,988,185.24/898,617.44
  6. Step 6: Final answer
    x = 677,189.16

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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.