Home / 813,370.16-1,122,181.80-490,957.76

Finding the Fourth Proportional to 813,370.16, 1,122,181.80 and 490,957.76

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Solution

The fourth proportional to 813,370.16, 1,122,181.80 and 490,957.76 is: 677,359.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,370.16 : 1,122,181.80 = 490,957.76 : x
  2. Step 2: Convert to fraction form
    813,370.16/1,122,181.80 = 490,957.76/x
  3. Step 3: Cross multiply
    813,370.16x = 1,122,181.80 × 490,957.76
  4. Step 4: Simplify right side
    813,370.16x = 550,943,862,840.77
  5. Step 5: Solve for x
    x = 550,943,862,840.77/813,370.16
  6. Step 6: Final answer
    x = 677,359.33

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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.