Home / 898,875.23-1,240,439.57-490,976.94

Finding the Fourth Proportional to 898,875.23, 1,240,439.57 and 490,976.94

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Solution

The fourth proportional to 898,875.23, 1,240,439.57 and 490,976.94 is: 677,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,875.23 : 1,240,439.57 = 490,976.94 : x
  2. Step 2: Convert to fraction form
    898,875.23/1,240,439.57 = 490,976.94/x
  3. Step 3: Cross multiply
    898,875.23x = 1,240,439.57 × 490,976.94
  4. Step 4: Simplify right side
    898,875.23x = 609,027,228,371.44
  5. Step 5: Solve for x
    x = 609,027,228,371.44/898,875.23
  6. Step 6: Final answer
    x = 677,543.68

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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.