Home / 1,078,728.60-1,617,509.70-447,706.20

Finding the Fourth Proportional to 1,078,728.60, 1,617,509.70 and 447,706.20

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Solution

The fourth proportional to 1,078,728.60, 1,617,509.70 and 447,706.20 is: 671,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,728.60 : 1,617,509.70 = 447,706.20 : x
  2. Step 2: Convert to fraction form
    1,078,728.60/1,617,509.70 = 447,706.20/x
  3. Step 3: Cross multiply
    1,078,728.60x = 1,617,509.70 × 447,706.20
  4. Step 4: Simplify right side
    1,078,728.60x = 724,169,121,250.14
  5. Step 5: Solve for x
    x = 724,169,121,250.14/1,078,728.60
  6. Step 6: Final answer
    x = 671,317.25

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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.