Home / 697,230.87-1,045,846.31-487,278.87

Finding the Fourth Proportional to 697,230.87, 1,045,846.31 and 487,278.87

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Solution

The fourth proportional to 697,230.87, 1,045,846.31 and 487,278.87 is: 730,918.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,230.87 : 1,045,846.31 = 487,278.87 : x
  2. Step 2: Convert to fraction form
    697,230.87/1,045,846.31 = 487,278.87/x
  3. Step 3: Cross multiply
    697,230.87x = 1,045,846.31 × 487,278.87
  4. Step 4: Simplify right side
    697,230.87x = 509,618,805,694.08
  5. Step 5: Solve for x
    x = 509,618,805,694.08/697,230.87
  6. Step 6: Final answer
    x = 730,918.31

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Double scale
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Similar ratio
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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.