Home / 898,555.30-1,240,056.93-490,695.10

Finding the Fourth Proportional to 898,555.30, 1,240,056.93 and 490,695.10

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Solution

The fourth proportional to 898,555.30, 1,240,056.93 and 490,695.10 is: 677,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,555.30 : 1,240,056.93 = 490,695.10 : x
  2. Step 2: Convert to fraction form
    898,555.30/1,240,056.93 = 490,695.10/x
  3. Step 3: Cross multiply
    898,555.30x = 1,240,056.93 × 490,695.10
  4. Step 4: Simplify right side
    898,555.30x = 608,489,859,272.04
  5. Step 5: Solve for x
    x = 608,489,859,272.04/898,555.30
  6. Step 6: Final answer
    x = 677,186.88

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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.