Home / 720,010.20-1,080,015.30-533,386.20

Finding the Fourth Proportional to 720,010.20, 1,080,015.30 and 533,386.20

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Solution

The fourth proportional to 720,010.20, 1,080,015.30 and 533,386.20 is: 800,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,010.20 : 1,080,015.30 = 533,386.20 : x
  2. Step 2: Convert to fraction form
    720,010.20/1,080,015.30 = 533,386.20/x
  3. Step 3: Cross multiply
    720,010.20x = 1,080,015.30 × 533,386.20
  4. Step 4: Simplify right side
    720,010.20x = 576,065,256,808.86
  5. Step 5: Solve for x
    x = 576,065,256,808.86/720,010.20
  6. Step 6: Final answer
    x = 800,079.30

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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.