Home / 806,621.51-1,210,679.96-407,542.77

Finding the Fourth Proportional to 806,621.51, 1,210,679.96 and 407,542.77

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Solution

The fourth proportional to 806,621.51, 1,210,679.96 and 407,542.77 is: 611,691.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,621.51 : 1,210,679.96 = 407,542.77 : x
  2. Step 2: Convert to fraction form
    806,621.51/1,210,679.96 = 407,542.77/x
  3. Step 3: Cross multiply
    806,621.51x = 1,210,679.96 × 407,542.77
  4. Step 4: Simplify right side
    806,621.51x = 493,403,862,444.18
  5. Step 5: Solve for x
    x = 493,403,862,444.18/806,621.51
  6. Step 6: Final answer
    x = 611,691.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.