Home / 746,169.40-1,119,254.10-430,463.80

Finding the Fourth Proportional to 746,169.40, 1,119,254.10 and 430,463.80

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Solution

The fourth proportional to 746,169.40, 1,119,254.10 and 430,463.80 is: 645,695.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,169.40 : 1,119,254.10 = 430,463.80 : x
  2. Step 2: Convert to fraction form
    746,169.40/1,119,254.10 = 430,463.80/x
  3. Step 3: Cross multiply
    746,169.40x = 1,119,254.10 × 430,463.80
  4. Step 4: Simplify right side
    746,169.40x = 481,798,373,051.58
  5. Step 5: Solve for x
    x = 481,798,373,051.58/746,169.40
  6. Step 6: Final answer
    x = 645,695.70

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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.