Home / 814,979.40-1,124,788.53-488,305.31

Finding the Fourth Proportional to 814,979.40, 1,124,788.53 and 488,305.31

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Solution

The fourth proportional to 814,979.40, 1,124,788.53 and 488,305.31 is: 673,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,979.40 : 1,124,788.53 = 488,305.31 : x
  2. Step 2: Convert to fraction form
    814,979.40/1,124,788.53 = 488,305.31/x
  3. Step 3: Cross multiply
    814,979.40x = 1,124,788.53 × 488,305.31
  4. Step 4: Simplify right side
    814,979.40x = 549,240,206,202.15
  5. Step 5: Solve for x
    x = 549,240,206,202.15/814,979.40
  6. Step 6: Final answer
    x = 673,931.40

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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.