Home / 891,537.72-1,230,406.92-509,490.42

Finding the Fourth Proportional to 891,537.72, 1,230,406.92 and 509,490.42

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Solution

The fourth proportional to 891,537.72, 1,230,406.92 and 509,490.42 is: 703,145.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,537.72 : 1,230,406.92 = 509,490.42 : x
  2. Step 2: Convert to fraction form
    891,537.72/1,230,406.92 = 509,490.42/x
  3. Step 3: Cross multiply
    891,537.72x = 1,230,406.92 × 509,490.42
  4. Step 4: Simplify right side
    891,537.72x = 626,880,538,441.71
  5. Step 5: Solve for x
    x = 626,880,538,441.71/891,537.72
  6. Step 6: Final answer
    x = 703,145.28

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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.