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Finding the Fourth Proportional to 576,285.30, 807,980.40 and 576,285.30

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Solution

The fourth proportional to 576,285.30, 807,980.40 and 576,285.30 is: 807,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,285.30 : 807,980.40 = 576,285.30 : x
  2. Step 2: Convert to fraction form
    576,285.30/807,980.40 = 576,285.30/x
  3. Step 3: Cross multiply
    576,285.30x = 807,980.40 × 576,285.30
  4. Step 4: Simplify right side
    576,285.30x = 465,627,227,208.12
  5. Step 5: Solve for x
    x = 465,627,227,208.12/576,285.30
  6. Step 6: Final answer
    x = 807,980.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.