Home / 898,776.57-1,240,256.70-490,795.38

Finding the Fourth Proportional to 898,776.57, 1,240,256.70 and 490,795.38

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Solution

The fourth proportional to 898,776.57, 1,240,256.70 and 490,795.38 is: 677,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,776.57 : 1,240,256.70 = 490,795.38 : x
  2. Step 2: Convert to fraction form
    898,776.57/1,240,256.70 = 490,795.38/x
  3. Step 3: Cross multiply
    898,776.57x = 1,240,256.70 × 490,795.38
  4. Step 4: Simplify right side
    898,776.57x = 608,712,258,374.05
  5. Step 5: Solve for x
    x = 608,712,258,374.05/898,776.57
  6. Step 6: Final answer
    x = 677,267.61

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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.