Home / 751,045.64-1,036,441.76-406,890.32

Finding the Fourth Proportional to 751,045.64, 1,036,441.76 and 406,890.32

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Solution

The fourth proportional to 751,045.64, 1,036,441.76 and 406,890.32 is: 561,507.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,045.64 : 1,036,441.76 = 406,890.32 : x
  2. Step 2: Convert to fraction form
    751,045.64/1,036,441.76 = 406,890.32/x
  3. Step 3: Cross multiply
    751,045.64x = 1,036,441.76 × 406,890.32
  4. Step 4: Simplify right side
    751,045.64x = 421,718,119,387.76
  5. Step 5: Solve for x
    x = 421,718,119,387.76/751,045.64
  6. Step 6: Final answer
    x = 561,507.98

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.