Home / 1,382,813.80-2,074,220.70-436,280.20

Finding the Fourth Proportional to 1,382,813.80, 2,074,220.70 and 436,280.20

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Solution

The fourth proportional to 1,382,813.80, 2,074,220.70 and 436,280.20 is: 654,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,813.80 : 2,074,220.70 = 436,280.20 : x
  2. Step 2: Convert to fraction form
    1,382,813.80/2,074,220.70 = 436,280.20/x
  3. Step 3: Cross multiply
    1,382,813.80x = 2,074,220.70 × 436,280.20
  4. Step 4: Simplify right side
    1,382,813.80x = 904,941,421,840.14
  5. Step 5: Solve for x
    x = 904,941,421,840.14/1,382,813.80
  6. Step 6: Final answer
    x = 654,420.30

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Double scale
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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.