Home / 760,431.12-1,049,505.48-438,078.48

Finding the Fourth Proportional to 760,431.12, 1,049,505.48 and 438,078.48

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Solution

The fourth proportional to 760,431.12, 1,049,505.48 and 438,078.48 is: 604,611.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,431.12 : 1,049,505.48 = 438,078.48 : x
  2. Step 2: Convert to fraction form
    760,431.12/1,049,505.48 = 438,078.48/x
  3. Step 3: Cross multiply
    760,431.12x = 1,049,505.48 × 438,078.48
  4. Step 4: Simplify right side
    760,431.12x = 459,765,765,430.07
  5. Step 5: Solve for x
    x = 459,765,765,430.07/760,431.12
  6. Step 6: Final answer
    x = 604,611.98

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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.