Home / 746,435.40-1,119,653.10-430,729.80

Finding the Fourth Proportional to 746,435.40, 1,119,653.10 and 430,729.80

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Solution

The fourth proportional to 746,435.40, 1,119,653.10 and 430,729.80 is: 646,094.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,435.40 : 1,119,653.10 = 430,729.80 : x
  2. Step 2: Convert to fraction form
    746,435.40/1,119,653.10 = 430,729.80/x
  3. Step 3: Cross multiply
    746,435.40x = 1,119,653.10 × 430,729.80
  4. Step 4: Simplify right side
    746,435.40x = 482,267,955,832.38
  5. Step 5: Solve for x
    x = 482,267,955,832.38/746,435.40
  6. Step 6: Final answer
    x = 646,094.70

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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.