Home / 790,210.79-1,090,493.60-427,634.56

Finding the Fourth Proportional to 790,210.79, 1,090,493.60 and 427,634.56

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Solution

The fourth proportional to 790,210.79, 1,090,493.60 and 427,634.56 is: 590,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,210.79 : 1,090,493.60 = 427,634.56 : x
  2. Step 2: Convert to fraction form
    790,210.79/1,090,493.60 = 427,634.56/x
  3. Step 3: Cross multiply
    790,210.79x = 1,090,493.60 × 427,634.56
  4. Step 4: Simplify right side
    790,210.79x = 466,332,750,818.82
  5. Step 5: Solve for x
    x = 466,332,750,818.82/790,210.79
  6. Step 6: Final answer
    x = 590,137.16

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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.