Home / 811,230.30-1,214,512.65-496,302.30

Finding the Fourth Proportional to 811,230.30, 1,214,512.65 and 496,302.30

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Solution

The fourth proportional to 811,230.30, 1,214,512.65 and 496,302.30 is: 743,026.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,230.30 : 1,214,512.65 = 496,302.30 : x
  2. Step 2: Convert to fraction form
    811,230.30/1,214,512.65 = 496,302.30/x
  3. Step 3: Cross multiply
    811,230.30x = 1,214,512.65 × 496,302.30
  4. Step 4: Simplify right side
    811,230.30x = 602,765,421,574.10
  5. Step 5: Solve for x
    x = 602,765,421,574.10/811,230.30
  6. Step 6: Final answer
    x = 743,026.27

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Double scale
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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.