Home / 766,618.23-1,057,955.01-427,108.35

Finding the Fourth Proportional to 766,618.23, 1,057,955.01 and 427,108.35

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Solution

The fourth proportional to 766,618.23, 1,057,955.01 and 427,108.35 is: 589,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,618.23 : 1,057,955.01 = 427,108.35 : x
  2. Step 2: Convert to fraction form
    766,618.23/1,057,955.01 = 427,108.35/x
  3. Step 3: Cross multiply
    766,618.23x = 1,057,955.01 × 427,108.35
  4. Step 4: Simplify right side
    766,618.23x = 451,861,418,695.33
  5. Step 5: Solve for x
    x = 451,861,418,695.33/766,618.23
  6. Step 6: Final answer
    x = 589,421.70

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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.