Home / 990,091.49-1,484,899.34-457,100.51

Finding the Fourth Proportional to 990,091.49, 1,484,899.34 and 457,100.51

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Solution

The fourth proportional to 990,091.49, 1,484,899.34 and 457,100.51 is: 685,540.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,091.49 : 1,484,899.34 = 457,100.51 : x
  2. Step 2: Convert to fraction form
    990,091.49/1,484,899.34 = 457,100.51/x
  3. Step 3: Cross multiply
    990,091.49x = 1,484,899.34 × 457,100.51
  4. Step 4: Simplify right side
    990,091.49x = 678,748,235,902.66
  5. Step 5: Solve for x
    x = 678,748,235,902.66/990,091.49
  6. Step 6: Final answer
    x = 685,540.93

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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.