Home / 1,078,220.80-1,617,331.20-700,307.20

Finding the Fourth Proportional to 1,078,220.80, 1,617,331.20 and 700,307.20

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Solution

The fourth proportional to 1,078,220.80, 1,617,331.20 and 700,307.20 is: 1,050,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,220.80 : 1,617,331.20 = 700,307.20 : x
  2. Step 2: Convert to fraction form
    1,078,220.80/1,617,331.20 = 700,307.20/x
  3. Step 3: Cross multiply
    1,078,220.80x = 1,617,331.20 × 700,307.20
  4. Step 4: Simplify right side
    1,078,220.80x = 1,132,628,684,144.64
  5. Step 5: Solve for x
    x = 1,132,628,684,144.64/1,078,220.80
  6. Step 6: Final answer
    x = 1,050,460.80

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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.