Home / 766,290.18-1,057,400.90-471,893.10

Finding the Fourth Proportional to 766,290.18, 1,057,400.90 and 471,893.10

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Solution

The fourth proportional to 766,290.18, 1,057,400.90 and 471,893.10 is: 651,163.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,290.18 : 1,057,400.90 = 471,893.10 : x
  2. Step 2: Convert to fraction form
    766,290.18/1,057,400.90 = 471,893.10/x
  3. Step 3: Cross multiply
    766,290.18x = 1,057,400.90 × 471,893.10
  4. Step 4: Simplify right side
    766,290.18x = 498,980,188,643.79
  5. Step 5: Solve for x
    x = 498,980,188,643.79/766,290.18
  6. Step 6: Final answer
    x = 651,163.49

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Double scale
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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.