Home / 811,271.70-1,216,907.55-337,799.70

Finding the Fourth Proportional to 811,271.70, 1,216,907.55 and 337,799.70

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Solution

The fourth proportional to 811,271.70, 1,216,907.55 and 337,799.70 is: 506,699.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,271.70 : 1,216,907.55 = 337,799.70 : x
  2. Step 2: Convert to fraction form
    811,271.70/1,216,907.55 = 337,799.70/x
  3. Step 3: Cross multiply
    811,271.70x = 1,216,907.55 × 337,799.70
  4. Step 4: Simplify right side
    811,271.70x = 411,071,005,317.74
  5. Step 5: Solve for x
    x = 411,071,005,317.74/811,271.70
  6. Step 6: Final answer
    x = 506,699.55

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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.