Home / 738,079.02-1,107,212.31-288,742.25

Finding the Fourth Proportional to 738,079.02, 1,107,212.31 and 288,742.25

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Solution

The fourth proportional to 738,079.02, 1,107,212.31 and 288,742.25 is: 433,150.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,079.02 : 1,107,212.31 = 288,742.25 : x
  2. Step 2: Convert to fraction form
    738,079.02/1,107,212.31 = 288,742.25/x
  3. Step 3: Cross multiply
    738,079.02x = 1,107,212.31 × 288,742.25
  4. Step 4: Simplify right side
    738,079.02x = 319,698,968,081.04
  5. Step 5: Solve for x
    x = 319,698,968,081.04/738,079.02
  6. Step 6: Final answer
    x = 433,150.05

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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.