Home / 920,116.80-1,380,175.20-470,688.30

Finding the Fourth Proportional to 920,116.80, 1,380,175.20 and 470,688.30

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Solution

The fourth proportional to 920,116.80, 1,380,175.20 and 470,688.30 is: 706,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,116.80 : 1,380,175.20 = 470,688.30 : x
  2. Step 2: Convert to fraction form
    920,116.80/1,380,175.20 = 470,688.30/x
  3. Step 3: Cross multiply
    920,116.80x = 1,380,175.20 × 470,688.30
  4. Step 4: Simplify right side
    920,116.80x = 649,632,318,590.16
  5. Step 5: Solve for x
    x = 649,632,318,590.16/920,116.80
  6. Step 6: Final answer
    x = 706,032.45

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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.