Home / 1,350,380-1,863,448.96-738,411.20

Finding the Fourth Proportional to 1,350,380, 1,863,448.96 and 738,411.20

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Solution

The fourth proportional to 1,350,380, 1,863,448.96 and 738,411.20 is: 1,018,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350,380 : 1,863,448.96 = 738,411.20 : x
  2. Step 2: Convert to fraction form
    1,350,380/1,863,448.96 = 738,411.20/x
  3. Step 3: Cross multiply
    1,350,380x = 1,863,448.96 × 738,411.20
  4. Step 4: Simplify right side
    1,350,380x = 1,375,991,582,692.35
  5. Step 5: Solve for x
    x = 1,375,991,582,692.35/1,350,380
  6. Step 6: Final answer
    x = 1,018,966.20

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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.